82 research outputs found

    Challenges and Progress with Diagnosing Pulmonary Tuberculosis in Low- and Middle-Income Countries

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    Case finding and the diagnosis of tuberculosis (TB) are key activities to reach the World Health Organization’s End TB targets by 2030. This paper focuses on the diagnosis of pulmonary TB (PTB) in low- and middle-income countries. Sputum smear microscopy, despite its many limitations, remains the primary diagnostic tool in peripheral health facilities; however, this is being replaced by molecular diagnostic techniques, particularly Xpert MTB/RIF, which allows a bacteriologically confirmed diagnosis of TB along with information about whether or not the organism is resistant to rifampicin within two hours. Other useful diagnostic tools at peripheral facilities include chest radiography, urine lipoarabinomannan (TB-LAM) in HIV-infected patients with advanced immunodeficiency, and the loop-mediated isothermal amplification (TB-LAMP) test which may be superior to smear microscopy. National Reference Laboratories work at a higher level, largely performing culture and phenotypic drug susceptibility testing which is complemented by genotypic methods such as line probe assays for detecting resistance to isoniazid, rifampicin, and second-line drugs. Tuberculin skin testing, interferon gamma release assays, and commercial serological tests are not recommended for the diagnosis of active TB. Linking diagnosis to treatment and care is often poor, and this aspect of TB management needs far more attention than it currently receives

    Do diabetes mellitus patients adhere to self-monitoring of blood glucose (SMBG) and is this associated with glycemic control? Experiences from a SMBG program in western Kenya

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    AbstractAimsAmong diabetes mellitus (DM) patients with poor glycemic control enrolled into a self-monitoring of blood glucose (SMBG) program in Kenya, to assess the level of SMBG adherence, its associated factors and its relation to glycemic control (defined as HbA1c <7% and/or 2% absolute reduction relative to baseline).MethodsIn this retrospective cohort study, we used routinely collected data of patients enrolled during 2012–2013. We assessed adherence to SMBG by dividing the number of glucose tests performed by the number recommended. A level of ≥80% was considered ‘good adherence’. Glycemic control was considered as absolute change from baseline of 2%.ResultsOf 164 patients (59% female; 76% rural), the proportions with good SMBG adherence were 34%, 17%, 15% and 10% during 0–6, 7–12, 13–18 and 19–24 months into the HGM program respectively. In multivariate analysis, male gender, urban place of residence and payment for glucostrips were associated with poor adherence during 0–12 months. The mean reduction in HbA1c compared to baseline was 1.2%, 1.1%, 0.8% and 0.7% at 6, 12, 18 and 24 months, respectively. We did not find any association between SMBG adherence and glycemic control.ConclusionsAdherence to SMBG was sub-optimal, especially among those who had to pay for glucostrips. Patient education and provision of free glucostrips are recommended to improve adherence and glycemic control

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    Not AvailableThirty groundnut genotypes (18 of Virginia bunch, 5 Spanish bunch and 7 Virginia runner group) were screened for their relative response to Caryedon serratus using no choice test under laboratory condition (32 to 35 0 C). The results showed that the number of eggs laid by C. serratus ranged from 19.3 to 115.0 and adult emergence varied from 11.0 to 63.7 beetles. Per cent damage to the kernels was highest in ‘GG-20 (80.7%) and lowest in T-28 (7.6 %)’. First three principle components (PC) accounted for approximately 84% observed variation in the data. Breakdown of cumulative variance revealed the contribution of PC 1 and PC 2 and PC 3 were 46, 21 and 17%, respectively towards cumulative variance. The vertex genotypes were GG- 20, AK-303, AK-265, T-28, ALR-1 and ALR-3 of these genotypes, onl y one genotype, T-28 exhibited l ess egg counts, adul ts emergence and % damage while the rest recorded higher values for these traits. Association studies also revealed that genotypes with large seed size may be more susceptible to bruchid infestation.Not Availabl

    What Are the Barriers for Uptake of Antiretroviral Therapy in HIV-Infected Tuberculosis Patients? A Mixed-Methods Study from Ayeyawady Region, Myanmar

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    Antiretroviral therapy (ART) coverage among HIV-infected tuberculosis (HIV-TB) patients has been suboptimal in Myanmar and the reasons are unknown. We aimed to assess the ART uptake among HIV-TB patients in public health facilities of Ayeyawady Region from July 2017&ndash;June 2018 and explore the barriers for non-initiation of ART. We conducted an explanatory mixed-methods study with a quantitative component (cohort analysis of secondary programme data) followed by a descriptive qualitative component (thematic analysis of in-depth interviews of 22 providers and five patients). Among 12,447 TB patients, 11,057 (89%) were HIV-tested and 627 (5.7%) were HIV-positive. Of 627 HIV-TB patients, 446 (71%) received ART during TB treatment (86 started on ART prior to TB treatment and rest started after TB treatment). Among the 181 patients not started on ART, 60 (33%) died and 41 (23%) were lost-to-follow-up. Patient-related barriers included geographic and economic constraints, poor awareness, denial of HIV status, and fear of adverse drug effects. The health system barriers included limited human resource, provision of ART on &lsquo;fixed&rsquo; days only, weaknesses in counselling, referral and feedback mechanism, and clinicians&rsquo; reluctance to start ART early due to concerns about immune reconstitution inflammatory syndrome. We urge the national TB and HIV programs to take immediate actions to improve the ART uptake

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    No full text
    Not AvailableThirty groundnut genotypes (18 of Virginia bunch, 5 Spanish bunch and 7 Virginia runner group) were screened for their relative response to Caryedon serratus using no choice test under laboratory condition (32 to 350 C). The results showed that the number of eggs laid by C. serratus ranged from 19.3 to 115.0 and adult emergence varied from 11.0 to 63.7 beetles. Per cent damage to the kernels was highest in ‘GG-20 (80.7%) and lowest in T-28 (7.6 %)’. First three principle components (PC) accounted for approximately 84% observed variation in the data. Breakdown of cumulative variance revealed the contribution of PC 1 and PC 2 and PC 3 were 46, 21 and 17%, respectively towards cumulative variance. The vertex genotypes were GG- 20, AK-303, AK-265, T-28, ALR-1 and ALR-3 of these genotypes, only one genotype, T-28 exhibited less egg counts, adults emergence and % damage while the rest recorded higher values for these traits. Association studies also revealed that genotypes with large seed size may be more susceptible to bruchid infestation.Not Availabl

    Not Available

    No full text
    Not AvailableThirty groundnut genotypes (18 of Virginia bunch, 5 Spanish bunch and 7 Virginia runner group) were screened for their relative response to Caryedon serratus using no choice test under laboratory condition (32 to 35 0 C). The results showed that the number of eggs laid by C. serratus ranged from 19.3 to 115.0 and adult emergence varied from 11.0 to 63.7 beetles. Per cent damage to the kernels was highest in ‘GG-20 (80.7%) and lowest in T-28 (7.6 %)’. First three principle components (PC) accounted for approximately 84% observed variation in the data. Breakdown of cumulative variance revealed the contribution of PC 1 and PC 2 and PC 3 were 46, 21 and 17%, respectively towards cumulative variance. The vertex genotypes were GG- 20, AK-303, AK-265, T-28, ALR-1 and ALR-3 of these genotypes, onl y one genotype, T-28 exhibited l ess egg counts, adul ts emergence and % damage while the rest recorded higher values for these traits. Association studies also revealed that genotypes with large seed size may be more susceptible to bruchid infestation.Not Availabl

    The role of nongovernmental organizations in primary education - a study of six NGOs in India

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    Nongovernmental organizations (NGOs) extend education to underprivileged children in India, and develop innovations that improve the quality of primary education. In this study of six NGOs working with school-age children in India, the author shows the potential benefits of a government-NGO alliance to achieve universal primary education. The author emphasizes several areas in which collaboration can be particularly fruitful. 1) Targeting under-served children: The Government could support the efforts of NGOs to bring out-of-school children into schools, through timely supply of teachers, classroom space, and other resources. Targeted action is needed to reach different types of out-of-school children - those who work, those who live in slums, those on the street, those who are members of tribes, or of migrant families, and those who live in places without schools. To encourage young, first-generation learners to stay in school, requires a supportive, and nurturing environment. To help make learning interesting, and worthwhile for such children, teachers in government schools could receive special training in new methods developed by NGOs. 2) Enhancing quality: Improving the quality of education requires working closely with key agents of change, such as teachers, school heads, school management committees, and village education committees. To develop a cadre of trainers for primary school teachers, teacher training institutes would do well to evaluate, and learn from NGO models for teacher training. Teachers need a range of knowledge, and skills to teach underprivileged children effectively. Here again, NGO models would be a useful tool for teacher training institutes. NGOs, and the government could collaborate in developing appropriate, and flexible learning assessment tools, in line with innovative teaching, and learning methods. But without safeguards, large-scale replication by the government of such NGO innovations as the"alternative school"and the"voluntary teacher"could lower the quality of education. 3) Government-NGO links: The Government and NGOs will need to share a common vision on how to achieve universal primary education if India is to reach this goal. NGOs can be credible partners with the government in shaping policies for primary education. This entails collaboration, rather than parallel initiatives by NGOs. To stay at the cutting edge in education, NGOs should continually evaluate, and refine their models. If NGOs are to play a policy role in education, two areas that have been neglected will need to be addressed - NGO capacity building, and organizational development.Primary Education,Teaching and Learning,Health Monitoring&Evaluation,Gender and Education,Curriculum&Instruction

    The Growing Importance of Tuberculosis Preventive Therapy and How Research and Innovation Can Enhance Its Implementation on the Ground

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    Ending the tuberculosis (TB) epidemic by 2030 requires two key actions: rapid diagnosis and effective treatment of active TB and identification and treatment of latent TB infection to prevent progression to active disease. We introduce this perspective by documenting the growing importance of TB preventive therapy on the international agenda coupled with global data showing poor implementation of preventive activities in programmatic settings. We follow this with two principal objectives. The first is to examine implementation challenges around diagnosis and treatment of active TB. Within this, we include recent evidence about the continued morbidity and heightened mortality that persists after TB treatment is successfully completed, thus elevating the importance of TB preventive therapy. The second objective is to outline how current TB preventive therapy activities have been shaped and are managed and propose how these can be improved through research and innovation. This includes expanding and giving higher priority to certain high-risk groups including those with fibrotic lung lesions on chest X-ray, showcasing the need to develop and deploy new biomarkers to more accurately predict risk of disease and making shorter treatment regimens, especially with rifapentine-isoniazid, more user-friendly and widely available. Ending the TB epidemic requires not only cure of the disease but preventing it before it even begins
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