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1.
Health Res Policy Syst ; 19(1): 59, 2021 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-33823859

RESUMEN

BACKGROUND: Implementation research (IR) can play a critical role in the delivery of disease control interventions, particularly in low- and middle-income countries (LMICs). The growing demand for IR training has led to the development of a range of training programmes and university courses, the majority of which can not be accessed by learners in LMICs. This article reports on the evaluation of the massive open online course (MOOC) developed by the Special Programme for Research and Training in Tropical Diseases hosted by WHO on the topic of IR with a focus on infectious diseases of poverty. This study followed the Kirkpatrick Model to evaluate training programmes with a specific focus on post-training changes in behaviour. METHODS: MOOC participants were invited to take part in an anonymous online survey examining their knowledge of IR and how they applied it in their professional practice approximately 1-1.5 years after completing their course. The survey contained 43 open-ended, multiple choice and Likert-type questions. Descriptive statistics were calculated for the quantitative data and responses to the open-ended questions were thematically coded. RESULTS: A total of 748 MOOC participants responded to the survey. The demographic profile of the survey respondents aligned with that of the MOOC participants, with nearly 70% of respondents originating from Africa. Responses to the quantitative and open-ended survey questions revealed that respondents' knowledge of IR had improved to a large extent as a result of the MOOC, and that they used the knowledge and skills gained in their professional lives frequently and had consequently changed their professional behaviour. Respondents most often cited the problem-solving aspect of IR as a substantial area of behavioral change influenced by participating in the MOOC. CONCLUSIONS: These findings indicate that the MOOC was successful in targeting learners from LMICs, in strengthening their IR knowledge and contributing to their ability to apply it in their professional practice. The utility of MOOCs for providing IR training to learners in LMICs, where implementation challenges are encountered often, makes this platform an ideal standalone learning tool or one that could be combined with other training formats.


Asunto(s)
Educación a Distancia , África , Países en Desarrollo , Humanos , Pobreza , Encuestas y Cuestionarios
2.
BMC Infect Dis ; 20(1): 715, 2020 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-32993542

RESUMEN

BACKGROUND: Women are under-represented in many mid-career infectious diseases research fellowships, including a TDR fellowship for low- and middle-income country (LMIC) researchers. TDR solicited creative ideas as part of a challenge contest to increase the number of women fellowship applicants. The purpose of this study is to examine themes from submitted ideas and the impact of implementing the top three ideas on the number of women applicants. METHODS: We solicited ideas for modifying the TDR fellowship using a crowdsourcing challenge. Then we used a mixed methods approach to evaluate texts submitted in response to the challenge. The qualitative analysis identified themes from eligible submissions. The quantitative analysis examined the mean score (1-10 scale) assigned to submitted ideas and also the number of eligible women applicants before (2014-7) and after (2018) implementing the top three ideas. RESULTS: We received 311 ideas on improving women's participation in this fellowship from 63 countries. Among all ideas, 282 (91%) were from women and 286 (92%) were from low- and middle-income countries (LMICs). Thirty-three (17%) ideas received an overall mean score of 7.0 or greater. The top three ideas included enhanced social media communication targeting women, improving career mentorship, and creating a nomination system to nudge women applicants. These ideas were implemented as part of the 2018 fellowship application cycle. The number of eligible women applicants increased from 11 in 2016 to 48 in 2018. The number of eligible men applicants increased from 55 in 2016 to 114 in 2018. Women represent 44% (8/18) of the 2018 cohort. CONCLUSION: This suggests that the challenge contest resulted in strong participation from women in LMICs. The three top ideas likely contributed to a greater number of women applicants to this mid-career fellowship. Further ways of enhancing women's participation in global health training are needed.


Asunto(s)
Enfermedades Transmisibles , Colaboración de las Masas/métodos , Becas , Investigadores , Mujeres Trabajadoras , Adulto , Estudios de Cohortes , Comunicación , Femenino , Salud Global , Fuerza Laboral en Salud , Humanos , Masculino , Mentores , Investigación Cualitativa
3.
Health Res Policy Syst ; 18(1): 53, 2020 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-32487176

RESUMEN

BACKGROUND: Implementation research is increasingly being recognised as an important discipline seeking to maximise the benefits of evidence-based interventions. Although capacity-building efforts are ongoing, there has been limited attention on the contextual and health system peculiarities in low- and middle-income countries. Moreover, given the challenges encountered during the implementation of health interventions, the field of implementation research requires a creative attempt to build expertise for health researchers and practitioners simultaneously. With support from the Special Programme for Research and Training in Tropical Diseases, we have developed an implementation research short course that targets both researchers and practitioners. This paper seeks to explain the course development processes and report on training evaluations, highlighting its relevance for inter-institutional and inter-regional capacity strengthening. METHODS: The development of the implementation research course curriculum was categorised into four phases, namely the formation of a core curriculum development team, course content development, internal reviews and pilot, and external reviews and evaluations. Five modules were developed covering Introduction to implementation research, Methods in implementation research, Ethics and quality management in implementation research, Community and stakeholder engagement, and Dissemination in implementation research. Course evaluations were conducted using developed tools measuring participants' reactions and learning. RESULTS: From 2016 to 2018, the IR curriculum has been used to train a total of 165 researchers and practitioners predominantly from African countries, the majority of whom are males (57%) and researchers/academics (79.4%). Participants generally gave positive ratings (e.g. integration of concepts) for their reactions to the training. Under 'learnings', participants indicated improvement in their knowledge in areas such as identification of implementation research problems and questions. CONCLUSION: The approach for training both researchers and practitioners offers a dynamic opportunity for the acquisition and sharing of knowledge for both categories of learners. This approach was crucial in demonstrating a key characteristic of implementation research (e.g. multidisciplinary) practically evident during the training sessions. Using such a model to effectively train participants from various low- and middle-income countries shows the opportunities this training curriculum offers as a capacity-building tool.


Asunto(s)
Creación de Capacidad , Curriculum , Personal de Salud/educación , Investigadores/educación , Investigación/educación , Participación de los Interesados , África , Atención a la Salud , Países en Desarrollo , Ética en Investigación , Femenino , Investigación sobre Servicios de Salud , Humanos , Difusión de la Información , Aprendizaje , Masculino , Satisfacción Personal , Proyectos de Investigación , Investigación Biomédica Traslacional
4.
PLoS Pathog ; 12(9): e1005852, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27658195

RESUMEN

Cutaneous leishmaniasis has various outcomes, ranging from self-healing reddened papules to extensive open ulcerations that metastasise to secondary sites and are often resistant to standard therapies. In the case of L. guyanensis (L.g), about 5-10% of all infections result in metastatic complications. We recently showed that a cytoplasmic virus within L.g parasites (LRV1) is able to act as a potent innate immunogen, worsening disease outcome in a murine model. In this study, we investigated the immunophenotype of human patients infected by L.g and found a significant association between the inflammatory cytokine IL-17A, the presence of LRV1 and disease chronicity. Further, IL-17A was inversely correlated to the protective cytokine IFN-γ. These findings were experimentally corroborated in our murine model, where IL-17A produced in LRV1+ L.g infection contributed to parasite virulence and dissemination in the absence of IFN-γ. Additionally, IL-17A inhibition in mice using digoxin or SR1001, showed therapeutic promise in limiting parasite virulence. Thus, this murine model of LRV1-dependent infectious metastasis validated markers of disease chronicity in humans and elucidated the immunologic mechanism for the dissemination of Leishmania parasites to secondary sites. Moreover, it confirms the prognostic value of LRV1 and IL-17A detection to prevent metastatic leishmaniasis in human patients.

5.
Health Res Policy Syst ; 15(1): 28, 2017 Mar 31.
Artículo en Inglés | MEDLINE | ID: mdl-28359338

RESUMEN

Quality and ethics need to be embedded into all areas of research with human participants. Good Clinical Practice (GCP) guidelines are international ethical and scientific quality standards for designing, conducting, recording and reporting trials involving human participants. Compliance with GCP is expected to provide public assurance that the rights, safety and wellbeing of participants are protected and that the clinical research data are credible. However, whilst GCP guidelines, particularly their principles, are recommended across all research types, it is difficult for non-clinical trial research to fit in with the exacting requirements of GCP. There is therefore a need for guidance that allows health researchers to adhere to the principles of GCP, which will improve the quality and ethical conduct of all research involving human participants. These concerns have led to the development of the Good Health Research Practice (GHRP) course. Its goal is to ensure that research is conducted to the highest possible standards, similar to the conduct of trials to GCP. The GHRP course provides training and guidance to ensure quality and ethical conduct across all health-related research. The GHRP course has been run so far on eight occasions. Feedback from delegates has been overwhelmingly positive, with most delegates stating that the course was useful in developing their research protocols and documents. Whilst most training in research starts with a guideline, GHRP has started with a course and the experience gained over running the courses will be used to write a standardised guideline for the conduct of health-related research outside the realm of clinical trials, so that researchers, funders and ethics committees do not try to fit non-trials into clinical trials standards.


Asunto(s)
Investigación Biomédica/educación , Educación Médica , Experimentación Humana/normas , Investigación Biomédica/normas , Curriculum , Humanos , Proyectos Piloto , Guías de Práctica Clínica como Asunto , Práctica Profesional/normas , Calidad de la Atención de Salud
6.
Mem Inst Oswaldo Cruz ; 111(11): 717-719, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27759770

RESUMEN

Major emergency efforts are being mounted for each vector-borne disease epidemiological crisis anew, while knowledge about the biology of arthropods vectors is dwindling slowly but continuously, as is the number of field entomologists. The discrepancy between the rates of production of knowledge and its use and need for solving crises is widening, in particular due to the highly differing time spans of the two concurrent processes. A worldwide web based search using multiple key words and search engines of onsite and online courses in English, Spanish, Portuguese, French, Italian and German concerned with the biology of vectors identified over 140 courses. They are geographically and thematically scattered, the vast majority of them are on-site, with very few courses using the latest massive open online course (MOOC) powerfulness. Over two third of them is given in English and Western Africa is particularity poorly represented. The taxonomic groups covered are highly unbalanced towards mosquitoes. A worldwide unique portal to guide students of all grades and levels of expertise, in particular those in remote locations, is badly needed. This is the objective a new activity supported by the Special Programme for Research and Training in Tropical Diseases (TDR).


Asunto(s)
Vectores de Enfermedades , Entomología/educación , Control de Insectos , Insectos Vectores , Enseñanza/estadística & datos numéricos , África , Animales , Asia , Bovinos , América Central , Transmisión de Enfermedad Infecciosa , Educación a Distancia/estadística & datos numéricos , Entomología/estadística & datos numéricos , Europa (Continente) , Humanos , Lenguaje , América del Norte , América del Sur
7.
PLoS Negl Trop Dis ; 17(3): e0011139, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36961830

RESUMEN

The Special Programme for Research and Training in Tropical Diseases developed a massive open online course (MOOC) on implementation research with a focus on infectious diseases of poverty (IDPs) to reinforce the explanation of implementation research concepts through real case studies. The target MOOC participant group included public health officers, researchers and students. By reshaping institutions and building resilience in communities and systems, implementation research will allow progress towards universal health coverage and sustainable development goals. This study evaluates learners' knowledge in implementation research after completing the MOOC using anonymous exit survey responses. Of the almost 4000 enrolled in the two sessions of the MOOC in 2018, about 30% completed all five modules and the assessments, and were awarded certificates. The majority of the participants were early to mid-career professionals, under the age of 40, and from low- and middle-income countries. They were slightly more likely to be men (56%) with a Bachelor or a Master's degree. Participants were public health researchers (45%), public health officers (11%) or students (11%). On completion of the course, an exit survey revealed that 80.9% of respondents indicated significant improvement to strong and very strong implementation research knowledge. This evaluation clearly shows the usefulness of the MOOC on implementation research for reaching out to field researchers and public health practitioners who are facing problems in the implementation of control programmes in low- and middle-income countries.


Asunto(s)
Educación a Distancia , Masculino , Humanos , Femenino , Países en Desarrollo , Estudiantes , Evaluación Educacional , Encuestas y Cuestionarios
8.
Front Health Serv ; 3: 1217619, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38313329

RESUMEN

Introduction: Non-communicable diseases (NCDs) are a leading cause of morbidity and mortality in low-and middle- income countries (LMICs). Despite this, a lack of funding, training and mentorship for NCD investigators in LMICs exists. In an effort to gain knowledge and skills to address these gaps, participants from the Global Research on Implementation and Translation Science (GRIT), a consortium of studies in eight LMICs and their networks, attended the dissemination and implementation (D&I) massive open online course (MOOC) developed by the Special Programme for Research and Training in Tropical Diseases at the World Health Organization to strengthen D&I capacity building. Here, we report on the pilot of this MOOC, which was implemented during the SARS COVID-19 pandemic from April- November 2020. Methods: Participants completed pre-and post-training questionnaires to assess self-reported D&I competencies, general research skills, and research mentor access and quality. D&I competencies were measured by use of a scale developed for a US-based training program, with change in competency scores assessed by paired t test. We used univariate statistics to analyze the data for all other outcomes. Results: Of the 247 participants enrolled, 32 (13%) completed all course requirements, 21 (9%) completed the pre-and post-surveys and are included in the analysis. D&I competency scores suggest improvement for those who had complete pre- and post-assessments. Trainee's average score on the full competency scale improved 1.45 points (0-5 scale) from pre- to post-test; all four subscales also showed evidence of improvements. There were small but not significant increases in competencies for grant writing, proposal/ manuscript writing and presentations from pre- to post-test assessment. 40% of trainees reported access to a research mentor and 12% reported access to a D&I specific mentor. Participants reported barriers (e.g., unstable internet access and challenges due to COVID-19) and facilitators (e.g., topical interests, collaboration with colleagues) to completing the MOOC. Conclusions: Although COVID-19 affected program usage and completion, the MOOC was feasible. We also had signals of effectiveness, meaning among LMIC participants completing the course, there was improvement in self-report D&I competency scores. Recommendations for future D&I trainings in LMICs include (1) adding more topic specific modules (i.e., NCD research, general research skills) for scalability; (2) fostering more collaboration with participants across LMICs; and (3) establishing partnerships with D&I mentors for course participants.

9.
PLoS Pathog ; 6(2): e1000755, 2010 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-20140197

RESUMEN

Neutrophils are rapidly and massively recruited to sites of microbial infection, where they can influence the recruitment of dendritic cells. Here, we have analyzed the role of neutrophil released chemokines in the early recruitment of dendritic cells (DCs) in an experimental model of Leishmania major infection. We show in vitro, as well as during infection, that the parasite induced the expression of CCL3 selectively in neutrophils from L. major resistant mice. Neutrophil-secreted CCL3 was critical in chemotaxis of immature DCs, an effect lost upon CCL3 neutralisation. Depletion of neutrophils prior to infection, as well as pharmacological or genetic inhibition of CCL3, resulted in a significant decrease in DC recruitment at the site of parasite inoculation. Decreased DC recruitment in CCL3(-/-) mice was corrected by the transfer of wild type neutrophils at the time of infection. The early release of CCL3 by neutrophils was further shown to have a transient impact on the development of a protective immune response. Altogether, we identified a novel role for neutrophil-secreted CCL3 in the first wave of DC recruitment to the site of infection with L. major, suggesting that the selective release of neutrophil-secreted chemokines may regulate the development of immune response to pathogens.


Asunto(s)
Quimiocina CCL3/inmunología , Quimiotaxis de Leucocito/inmunología , Células Dendríticas/inmunología , Leishmaniasis Cutánea/inmunología , Neutrófilos/inmunología , Animales , Quimiocina CCL3/metabolismo , Células Dendríticas/metabolismo , Femenino , Citometría de Flujo , Leishmania major/inmunología , Leishmaniasis Cutánea/metabolismo , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos C57BL , Neutrófilos/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa
10.
J Immunol ; 184(2): 886-94, 2010 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-19966209

RESUMEN

Recent evidence indicates that B cells are required for susceptibility to infection with Leishmania major in BALB/c mice. In this study, we analyzed the role of the IL-10 produced by B cells in this process. We showed that B cells purified from the spleen of BALB/c mice produced IL-10 in response to stimulation with L. major in vitro. In vivo, early IL-10 mRNA expression is detected after L. major infection in B cells from draining lymph nodes of susceptible BALB/c, but not of resistant C57BL/6 mice. Although adoptive transfer of naive wild-type B cells prior to infection in B cell-deficient BALB/c mice restored Th2 cell development and susceptibility to infection with L. major of these otherwise resistant mice, adoptive transfer of IL-10(-/-) B cells mice did not. B cells stimulated by L. major, following in vitro or in vivo encounter, express the CD1d and CD5 molecules and the IL-10 produced by these cells downregulate IL-12 production by L. major-stimulated dendritic cells. These observations indicate that IL-10 secreting B cells are phenotypically and functionally regulatory B cells. Altogether these results demonstrate that the IL-10 produced by regulatory CD1d+ CD5+ B cells in response to L. major is critical for Th2 cell development in BALB/c mice.


Asunto(s)
Linfocitos B/inmunología , Interleucina-10/biosíntesis , Leishmaniasis Cutánea/inmunología , Células Th2/inmunología , Traslado Adoptivo , Animales , Antígenos CD1d , Linfocitos B/parasitología , Linfocitos B/trasplante , Antígenos CD5 , Susceptibilidad a Enfermedades/inmunología , Leishmania major/inmunología , Leishmaniasis Cutánea/etiología , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos C57BL , Células Th2/citología
11.
BMJ Open ; 12(5): e054719, 2022 05 03.
Artículo en Inglés | MEDLINE | ID: mdl-35504633

RESUMEN

INTRODUCTION: An implementation research (IR) massive open online course (MOOC) was developed by the Special Programme for Research and Training in Tropical Diseases, to address the scarcity of training in low-income and middle-income countries in the field of IR. The Kirkpatrick model was used to evaluate the IR MOOC as it is widely applied for evaluation of training and educational programmes. The Kirkpatrick model evaluates training programmes on four levels: reaction, learning, behaviour and results. This paper addresses the impact of the IR MOOC on participants' professional practice. METHODS: Findings are based on analysis of survey and interview data collected 1.5-2 years after the conclusion of the two 2018 IR MOOC offerings. Of the 3858 MOC participants, 748 responded to the anonymous online survey and seven of these respondents were interviewed. All data are self-reported. RESULTS: The IR MOOC was successful in enhancing the professional practice of participants and for their organisations. Over 40% reported modifying or implementing changes in their professional work. Respondents reported that participation in the MOOC had improved their ability to conduct IR, enhanced their professional profiles and increased their opportunities for collaboration, research and job promotion. Respondents stated that the MOOC had improved their work quality and productivity, and allowed them to contribute to research, initiate and develop professional collaborations and train others in IR. Respondents reported an increase in applying for grants and scholarships and presenting and publishing work on IR after participating in the MOOC. Barriers applying the knowledge gained from the IR MOOC were experienced, for example, due to a lack of funding and lack of support from colleagues, managers and organisations. CONCLUSION: Participants perceived that the IR MOOC was successful in its aims of delivering medium-term and long-term results in relation to their own and their organisations' professional outcomes.


Asunto(s)
Educación a Distancia , Estudios Transversales , Educación a Distancia/métodos , Humanos , Encuestas y Cuestionarios
12.
Glob Health Action ; 15(1): 2035504, 2022 12 31.
Artículo en Inglés | MEDLINE | ID: mdl-35322762

RESUMEN

BACKGROUND: The EDCTP-TDR Clinical Research and Development Fellowship (CRDF) scheme has offered one-year clinical research training placements for early- and mid-career researchers from LMIC since 1999. OBJECTIVE: Using the results of a 2018 external evaluation of the CRDF, the current article aims to identify the principal benefits for the main stakeholders of the CRDF scheme as well as the main barriers to accessing these benefits. METHOD: Data analysis was derived from an external evaluation of the CRDF scheme. Based on a logical framework approach, data for the external evaluation was collected through document review, interviews, focus groups, and questionnaires collected from the main stakeholder groups. The evaluation was structured along six main themes: relevance, effectiveness, efficiency, impact, sustainability, and equity. RESULTS: The current paper focuses on the expected benefits, unexpected benefits, and barriers to enjoying benefits of the scheme for key stakeholders. DISCUSSION: Expected benefits were aligned with the development of clinical research competencies, which is the objective of the scheme. Unexpected benefits centred on transferable professional skills in scientific leadership and knowledge translation. Barriers mainly were found around engagement with home institutions and the return and reintegration of fellows following the training period. CONCLUSIONS AND RECOMMENDATIONS: Recommendations include further engagement with and support for home institutions and developing a formal framework for the development of transferable professional competencies, including leadership and knowledge transfer competencies.


Asunto(s)
Países en Desarrollo , Renta , Competencia Clínica , Becas , Humanos , Investigación
13.
BMJ Glob Health ; 7(7)2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35896184

RESUMEN

BACKGROUND: Many low-income and middle-income country (LMIC) researchers have disadvantages when applying for research grants. Crowdfunding may help LMIC researchers to fund their research. Crowdfunding organises large groups of people to make small contributions to support a research study. This manuscript synthesises global qualitative evidence and describes a Special Programme for Research and Training in Tropical Diseases (TDR) crowdfunding pilot for LMIC researchers. METHODS: Our global systematic review and qualitative evidence synthesis searched six databases for qualitative data. We used a thematic synthesis approach and assessed our findings using the GRADE-CERQual approach. Building on the review findings, we organised a crowdfunding pilot to support LMIC researchers and use crowdfunding. The pilot provided an opportunity to assess the feasibility of crowdfunding for infectious diseases of poverty research in resource-constrained settings. RESULTS: Nine studies were included in the qualitative evidence synthesis. We identified seven findings which we organised into three broad domains: public engagement strategies, correlates of crowdfunding success and risks and mitigation strategies. Our pilot data suggest that crowdfunding is feasible in diverse LMIC settings. Three researchers launched crowdfunding campaigns, met their goals and received substantial monetary (raising a total of US$26 546 across all three campaigns) and non-monetary contributions. Two researchers are still preparing for the campaign launch due to COVID-19-related difficulties. CONCLUSION: Public engagement provides a foundation for effective crowdfunding for health research. Our evidence synthesis and pilot data provide practical strategies for LMIC researchers to engage the public and use crowdfunding. A practical guide was created to facilitate these activities across multiple settings.


Asunto(s)
Obtención de Fondos , Obtención de Fondos/métodos , Humanos , Proyectos Piloto , Apoyo a la Investigación como Asunto
14.
Res Sq ; 2022 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-35411340

RESUMEN

Introduction: Non-communicable diseases (NCDs) are a leading cause of morbidity and mortality in low-and middle-income countries (LMICs). Despite this, a lack of funding, training and mentorship for NCD investigators in LMICs exists. In an effort to gain knowledge and skills to address these gaps, participants from the Global Research on Implementation and Translation Science (GRIT), a consortium of studies in eight LMICs and their networks, attended the dissemination and implementation (D&I) massive open online course (MOOC) developed by the Special Programme for Research and Training in Tropical Diseases at the World Health Organization to strengthen D&I capacity building. Here, we report on the feasibility of this MOOC, which was implemented during the SARS COVID-19 pandemic from April- November 2020. Methods: Participants completed pre- and post- training questionnaires to assess self-reported D&I competencies, general research skills, and research mentor access and quality. D&I competencies were measured by use of a scale developed for a US-based training program, with change in competency scores assessed by paired t test. We used univariate statistics to analyze the data for all other outcomes. Results: Of the 247 participants enrolled, 32 (13%) completed all MOOC components. D&I competency scores suggest improvement for those who had complete pre- and post-assessments. Trainee's average score on the full competency scale improved 1.45 points (0-5 scale) from pre- to post-test; all four subscales also showed evidence of improvements. There were small but not significant increases in competencies for grant writing, proposal/ manuscript writing and presentations from pre- to post-test assessment. 40% of trainees reported access to a research mentor and 12% reported access to a D&I specific mentor. Participants reported barriers (e.g., unstable internet access and challenges due to COVID-19) and facilitators (e.g., topical interests, collaboration with colleagues) to completing the MOOC. Conclusions: Although COVID-19 affected program usage and completion, the MOOC was feasible and effective, showing that among LMIC participants completing the course, there was improvement in D&I competency scores. Recommendations for future D&I trainings in LMICs should include 1) adding more topic specific modules (i.e., NCD research, general research skills) for scalability; 2) fostering more collaboration with participants across LMICs; and 3) establishing partnerships with D&I mentors for course participants.

15.
Eur J Immunol ; 40(6): 1697-707, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20333623

RESUMEN

Host resistance to Leishmania major is highly dependent on the development of a Th1 immune response. The TLR adaptator myeloid differentiation protein 88 (MyD88) has been implicated in the Th1 immune response associated with the resistant phenotype observed in C57BL/6 mice after infection with L. major. To investigate whether the MyD88 pathway is differentially used by distinct substrains of parasites, MyD88(-/-) C57BL/6 mice were infected with two substrains of L. major, namely L. major LV39 and L. major IR75. MyD88(-/-) mice were susceptible to both substrains of L. major, although with different kinetics of infection. The mechanisms involved during the immune response associated with susceptibility of MyD88(-/-) mice to L. major is however, parasite substrain-dependent. Susceptibility of MyD88(-/-) mice infected with L. major IR75 is a consequence of Th2 immune-deviation, whereas susceptibility of MyD88(-/-) mice to infection with L. major LV39 resulted from an impaired Th1 response. Depletion of regulatory T cells (Treg) partially restored IFN-gamma secretion and the Th1 immune response in MyD88(-/-) mice infected with L. major LV39, demonstrating a role of Treg activity in the development of an impaired Th1 response in these mice.


Asunto(s)
Leishmaniasis Cutánea/inmunología , Factor 88 de Diferenciación Mieloide/inmunología , Transducción de Señal/inmunología , Subgrupos de Linfocitos T/inmunología , Animales , Citocinas/biosíntesis , Susceptibilidad a Enfermedades/inmunología , Ensayo de Inmunoadsorción Enzimática , Femenino , Leishmania major/inmunología , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos C57BL
16.
Clin Dev Immunol ; 20112011.
Artículo en Inglés | MEDLINE | ID: mdl-20936150

RESUMEN

The mycolyl transferase antigen 85 complex is a major secreted protein family from mycobacterial culture filtrate, demonstrating powerful T cell stimulatory properties in most HIV-negative, tuberculin-positive volunteers with latent M.tuberculosis infection and only weak responses in HIV-negative tuberculosis patients. Here, we have analyzed T cell reactivity against PPD and Ag85 in HIV-infected individuals, without or with clinical symptoms of tuberculosis, and in AIDS patients with disease caused by nontuberculous mycobacteria. Whereas responses to PPD were not significantly different in HIV-negative and HIV-positive tuberculin-positive volunteers, responses to Ag85 were significantly decreased in the HIV-positive (CDC-A and CDC-B) group. Tuberculosis patients demonstrated low T cell reactivity against Ag85, irrespective of HIV infection, and finally AIDS patients suffering from NTM infections were completely nonreactive to Ag85. A one-year follow-up of twelve HIV-positive tuberculin-positive individuals indicated a decreased reactivity against Ag85 in patients developing clinical tuberculosis, highlighting the protective potential of this antigen.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/inmunología , Aciltransferasas/inmunología , Antígenos Bacterianos/inmunología , Infecciones por VIH/inmunología , Infecciones por Mycobacterium/inmunología , Linfocitos T/inmunología , Tuberculosis/inmunología , Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Bélgica , Guyana Francesa , VIH/fisiología , Infecciones por VIH/complicaciones , Infecciones por VIH/virología , Humanos , Memoria Inmunológica , Interferón gamma/metabolismo , Activación de Linfocitos/inmunología , Infecciones por Mycobacterium/complicaciones , Mycobacterium tuberculosis/inmunología , Prueba de Tuberculina , Tuberculosis/complicaciones , Tuberculosis/microbiología , Tuberculosis Pulmonar/complicaciones , Tuberculosis Pulmonar/inmunología
17.
F1000Res ; 9: 583, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32595962

RESUMEN

Background:  TDR, The Special Programme for Research and Training hosted at the World Health Organization, has long supported Low- and Middle-Income Countries in strengthening research capacity through three training programmes: the Postgraduate Training Scheme (PGTS), the Clinical Research and Development Fellowship (CRDF), and the Structured Operational Research Training InitiaTive (SORT IT). In the advent of the COVID-19 pandemic, we assessed whether those trained through these programmes were involved in the COVID-19 response and if so, in which area(s) of the emergency response they were applying their skills. Methods: From the records for each training programme, we identified the individuals who had completed training during the relevant timespan of each programme: 1999-2018 for the CRDF scheme, 2015-2020 for PGTS, and 2009-2019 for SORT-IT. Between March and April 2020, we sent trainees an online questionnaire by e-mail. Results: Out of 1254 trained, 1143 could be contacted and 699 responded to the survey. Of the latter, 411 were involved with the COVID-19 response, of whom 315 (77%) were applying their acquired skills in 85 countries. With some overlap between programmes, 84% of those trained through CRDF were applying their skills in 27 countries, 91% of those trained through PGTS were applying their skills in 19 countries, and through SORT IT, this was 73% in 62 countries.  Skills were being applied in various areas of the emergency response, including: emergency preparedness, situation analysis/surveillance, infection control and clinical management, data generation, mitigating the effect of COVID on the health system, and research.  Depending on the type of training programme, 26-74% were involved in implementation, operational or clinical research. Conclusion: Research training programmes build research capacity and equip health workers with transferable core competencies and skillsets prior to epidemics. This becomes invaluable in building health system resilience at a time of pandemics.


Asunto(s)
Investigación Biomédica/organización & administración , Infecciones por Coronavirus , Pandemias , Neumonía Viral , Evaluación de Programas y Proyectos de Salud , Betacoronavirus , COVID-19 , Estudios Transversales , Educación Continua/organización & administración , Becas , Humanos , SARS-CoV-2 , Encuestas y Cuestionarios
18.
Artículo en Inglés | MEDLINE | ID: mdl-32467769

RESUMEN

BACKGROUND: Hypertension (HTN) affects nearly 1 billion people globally and is a major cause of morbidity and mortality. In low- and middle-income countries (LMICs), HTN represents an unmet health care gap that can be addressed by strengthening national health care systems. The National Heart, Lung, and Blood Institute recently funded the T4 Translation Research Capacity Building Initiative in Low Income Countries (TREIN) program to build capacity in dissemination and implementation (D&I) research in HTN in LMICs. The Special Programme for Research and Training in Tropical Diseases (TDR) at the World Health Organization (WHO) recently developed a massive open online course (MOOC) to train in D&I. Herein, we report on the use of the TDR WHO MOOC in D&I for the TREIN program in Rwanda, assessing feasibility of the MOOC and D&I competencies after MOOC training. METHODS: Participants in one-group MOOC training completed pre- and post-training questionnaires to assess dissemination and implementation (D&I) competency outcomes and feasibility. D&I competencies were measured by use of a scale developed for a US-based training program, with the change in competency scores assessed by paired t test. Feasibility was measured by completion of homework and final project assignment and analyzed using descriptive statistics. RESULTS: Of the 92 trainees enrolled, 35 (38%) completed all MOOC components. D&I competency scores showed strong evidence of improvements from pre- to post-test. The full-scale average score improved by an average of 1.09 points, representing an effect size of 1.25 (CI 0.48-2.00); all four subscales also showed strong evidence of improvements. Trainees reported challenges to MOOC course completion that included technological issues (i.e., limited internet access) and competing demands (i.e., work, family). CONCLUSIONS: In the context of LMIC training, the MOOC course was feasible and course completion showed improvement in D&I competency scores. While the program was designed with a focus on training for tropical diseases, there is potential for scalability to a wider audience of health care researchers, workers, administrators, and policymakers in LMIC interested in D&I research in non-communicable diseases.

19.
BMJ Glob Health ; 4(5): e001747, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31544004

RESUMEN

The field of implementation research (IR) is growing. However, there are no recognised IR core competencies in low/middle-income countries (LMICs), nor consistent curriculum across IR training programs globally. The goal of this effort is to develop a framework of IR core competencies for training programs in LMICs. The framework was developed using a mixed-methods approach consisting of two online surveys with IR training coordinators (n = 16) and academics (n = 89) affiliated with seven LMIC institutions, and a modified-Delphi process to evaluate the domains, competencies and proficiency levels included in the framework. The final framework comprised of 11 domains, 59 competencies and 52 sub-competencies, and emphasised competencies for modifying contexts, strengthening health systems, addressing ethical concerns, engaging stakeholders and communication especially for LMIC settings, in addition to competencies on IR theories, methods and designs. The framework highlights the interconnectedness of domains and competencies for IR and practice, and training in IR following the outlined competencies is not a linear process but circular and iterative, and starting points for training may vary widely by the project, institution and challenge being addressed. The framework established the need for a theory-based approach to identifying proficiency levels for IR competencies (ie, to determine proficiency levels for IR based on generalisable educational theories for competency-based education), and the relevance of various IR competencies for LMICs compared with high-income settings. This framework is useful for identifying and evaluating competencies and trainings, and providing direction and support for professional development in IR.

20.
J Invest Dermatol ; 139(6): 1318-1328, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30594488

RESUMEN

Neutrophils are rapidly recruited to the mammalian skin in response to infection with the cutaneous Leishmania pathogen. The parasites use neutrophils to establish the disease; however, the signals driving early neutrophil recruitment are poorly known. Here, we identified the functional importance of TLR2 signaling in this process. Using bone marrow chimeras and immunohistology, we identified the TLR2-expressing cells involved in this early neutrophil recruitment to be of nonhematopoietic origin. Keratinocytes are damaged and briefly in contact with the parasites during infection. We show that TLR2 triggering by Leishmania major is required for their secretion of neutrophil-attracting chemokines. Furthermore, TLR2 triggering by L. major phosphoglycans is critical for neutrophil recruitment to negatively affect disease development, as shown by better control of lesion size and parasite load in Tlr2-/- compared with wild-type infected mice. Conversely, restoring early neutrophil presence in Tlr2-/- mice through injection of wild-type neutrophils or CXCL1 at the onset of infection resulted in delayed disease resolution comparable to that observed in wild-type mice. Taken together, our data show a crucial role for TLR2-expressing nonhematopoietic skin cells in the recruitment of the first wave of neutrophils after L. major infection, a process that delays disease control.


Asunto(s)
Queratinocitos/metabolismo , Leishmania major/inmunología , Leishmaniasis Cutánea/inmunología , Neutrófilos/inmunología , Receptor Toll-Like 2/metabolismo , Animales , Trasplante de Médula Ósea , Comunicación Celular/inmunología , Quimiocina CXCL1/inmunología , Quimiocina CXCL1/metabolismo , Modelos Animales de Enfermedad , Humanos , Queratinocitos/inmunología , Leishmania major/aislamiento & purificación , Leishmaniasis Cutánea/parasitología , Leishmaniasis Cutánea/patología , Ratones , Ratones Noqueados , Infiltración Neutrófila , Carga de Parásitos , Transducción de Señal/genética , Transducción de Señal/inmunología , Piel/citología , Piel/inmunología , Piel/parasitología , Piel/patología , Receptor Toll-Like 2/genética , Receptor Toll-Like 2/inmunología , Quimera por Trasplante
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