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https://www.readbyqxmd.com/read/28426273/preclinical-development-of-bcg-hiva-2auxo-int-harboring-an-integrative-expression-vector-for-a-hiv-tb-pediatric-vaccine-enhancement-of-stability-and-specific-hiv-1-t-cell-immunity
#1
Aakash Mahant, Narcís Saubi, Yoshiki Eto, Núria Guitart, Josep M ª Gatell, Tomáš Hanke, Joan Joseph
One of the critical issues that should be addressed in the development of a BCG-based HIV vaccine is genetic plasmid stability. Therefore, to address this issue we have considered using integrative vectors and the auxotrophic mutant of BCG complemented with a plasmid carrying a wild-type complementing gene. In this study, we have constructed an integrative E. coli-mycobacterial shuttle plasmid, p2auxo.HIVA(int), expressing the HIV-1 clade A immunogen HIVA. This shuttle vector employs an antibiotic resistance-free mechanism for plasmid selection and maintenance...
April 20, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28420356/an-assessment-of-the-hiv-tb-knowledge-and-skills-of-home-based-carers-working-in-the-north-west-province-in-south-africa-a-cross-sectional-study
#2
Justin G Engelbrecht, Mabjala R Letsoalo, Admire C Chirowodza
BACKGROUND: Home-based carers (HBCs) play a critical role in ensuring the success of the primary health care re-engineering strategy in South Africa. Their role includes ensuring improved access to and delivery of primary health care at the household level, and better co-ordination and improved linkages between community and health facilities for HIV/TB services. The objective of this study was to assess the knowledge, skills, challenges and training needs of HBCs involved in HIV/TB care in one sub-district in the North-West province of South Africa...
April 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28419314/adverse-drug-reactions-during-drug-resistant-tb-treatment-in-high-hiv-prevalence-settings-a-systematic-review-and-meta-analysis
#3
Kathryn Schnippel, Cynthia Firnhaber, Rebecca Berhanu, Liesl Page-Shipp, Edina Sinanovic
Objectives: To estimate the prevalence of adverse drug reactions or events (ADR) during drug-resistant TB (DR-TB) treatment in the context of settings with high HIV prevalence (at least 20% of patients). Methods: We conducted a systematic review and meta-analysis of articles in PubMed and Scopus. Pooled proportions of patients experiencing adverse events and relative risk with 95% CI were calculated. Results: The search yielded 24 studies, all observational cohorts...
April 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28419277/prevention-of-tb-using-rifampicin-plus-isoniazid-reduces-nevirapine-concentrations-in-hiv-exposed-infants
#4
Helen McIlleron, Paolo Denti, Silvia Cohn, Fildah Mashabela, Jennifer D Hoffmann, Saba Shembe, Regina Msandiwa, Lubbe Wiesner, Sithembiso Velaphi, Sanjay G Lala, Richard E Chaisson, Neil Martinson, Kelly E Dooley
Background: Newborns of HIV-infected mothers are given daily doses of nevirapine to prevent HIV-1 acquisition. Infants born to mothers with TB should also receive TB preventive therapy. TB preventive regimens include isoniazid for 6 months or rifampicin plus isoniazid for 3 months (RH preventive therapy). The effect of concomitant RH preventive therapy on nevirapine concentrations in infants is unknown. Patients and methods: Tshepiso was a prospective case-control cohort study of pregnant HIV-infected women with and without TB whose newborn infants received standard doses of nevirapine for HIV prophylaxis...
April 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28419149/mobile-health-treatment-support-intervention-for-hiv-and-tuberculosis-in-mozambique-perspectives-of-patients-and-healthcare-workers
#5
José António Nhavoto, Åke Grönlund, Gunnar O Klein
BACKGROUND: Studies have been conducted in developing countries using SMS to communicate with patients to reduce the number of missed appointments and improve retention in treatment, however; very few have been scaled up. One possible reason for this could be that patients or staff are dissatisfied with the method in some way. This paper reports a study of patients' and healthcare workers' (HCW) views on an mHealth intervention aiming to support retention in antiretroviral therapy (ART) and tuberculosis (TB) treatment in Mozambique...
2017: PloS One
https://www.readbyqxmd.com/read/28414762/transcriptional-networks-are-associated-with-resistance-to-mycobacterium-tuberculosis-infection
#6
Chetan Seshadri, Nafiseh Sedaghat, Monica Campo, Glenna Peterson, Richard D Wells, Gregory S Olson, David R Sherman, Catherine M Stein, Harriet Mayanja-Kizza, Ali Shojaie, W Henry Boom, Thomas R Hawn
RATIONALE: Understanding mechanisms of resistance to M. tuberculosis (M.tb) infection in humans could identify novel therapeutic strategies as it has for other infectious diseases, such as HIV. OBJECTIVES: To compare the early transcriptional response of M.tb-infected monocytes between Ugandan household contacts of tuberculosis patients who demonstrate clinical resistance to M.tb infection (cases) and matched controls with latent tuberculosis infection. METHODS: Cases (n = 10) and controls (n = 18) were selected from a long-term household contact study in which cases did not convert their tuberculin skin test (TST) or develop tuberculosis over two years of follow up...
2017: PloS One
https://www.readbyqxmd.com/read/28410692/treatment-outcome-of-extrapulmonary-tuberculosis-under-revised-national-tuberculosis-control-programme
#7
J J Cherian, I Lobo, A Sukhlecha, U Chawan, N A Kshirsagar, B L Nair, L Sawardekar
BACKGROUND: Extrapulmonary tuberculosis (EPTB) constitutes 15-20% of tuberculosis cases in India. Earlier studies have evaluated treatment outcomes of EPTB with little information on outcomes of individual site of EPTB. AIMS: The objective was to study the outcome of Directly Observed Treatment Short course (DOTS) treatment of EPTB in different organ systems under Revised National Tuberculosis Control Programme. METHODS: Multi-centric retrospectives record review was carried out in three states in India...
April 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28406806/improved-hiv-and-tb-knowledge-and-competence-among-mid-level-providers-in-a-cluster-randomized-trial-of-one-on-one-mentorship-for-task-shifting
#8
Sarah Naikoba, Kaggwa Dan Senjovu, Pallen Mugabe, Carey McCarthy, Patricia L Riley, Damazo Trevor Kadengye, Shona Dalal
INTRODUCTION: Health worker shortages pose a challenge to the scale-up of HIV care and treatment in Uganda. Training mid-level providers (MLP) in the provision of HIV and TB treatment can expand existing health workforce capacity and access to HIV services. METHODS: We conducted a cluster-randomized trial of, on-site clinical mentorship for HIV and TB care at 10 health facilities in rural Uganda. Twenty MLP and were randomly assigned to an intervention of eight hours a week of one on one mentorship, every six weeks over a nine month period; and another twenty to the control of no clinical mentorship...
April 12, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28404672/increased-tuberculosis-patient-mortality-associated-with-mycobacterium-tuberculosis-mutations-conferring-resistance-to-second-line-antituberculous-drugs
#9
Sophia B Georghiou, Marva Seifert, Donald G Catanzaro, Richard S Garfein, Timothy C Rodwell
Rapid molecular diagnostics have great potential to limit the spread of multi- and extensively drug-resistant tuberculosis (M/XDR-TB). These technologies detect mutations in the Mycobacterium tuberculosis (Mtb) genome that confer phenotypic drug resistance. However, there is little data published regarding the relationships between the detected Mtb resistance mutations and M/XDR-TB treatment outcomes, limiting our current ability to exploit the full potential of molecular diagnostics. We analyzed clinical, microbiological and sequencing data for 451 patients and their clinical isolates collected in a multinational, observational cohort study to determine if there was an association between Mtb resistance mutations and patient mortality...
April 12, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28399969/implementing-isoniazid-preventive-therapy-in-a-tuberculosis-treatment-experienced-cohort-on-art
#10
B Maharaj, T N Gengiah, N Yende-Zuma, S Gengiah, A Naidoo, K Naidoo
SETTING: Urban clinical research site in Durban, South Africa. OBJECTIVE: To describe outcomes associated with the implementation of isoniazid preventive therapy (IPT) in a cohort of tuberculosis (TB) treatment-experienced human immunodeficiency virus (HIV) infected patients on antiretroviral therapy (ART). DESIGN: We conducted a secondary analysis of data collected between October 2009 and October 2013 from patients enrolled in a prospective cohort study conducted in Durban, South Africa...
May 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28399968/tuberculosis-resistance-conferring-mutations-with-fitness-cost-among-hiv-positive-individuals-in-uganda
#11
W Ssengooba, D Lukoye, C J Meehan, D P Kateete, M L Joloba, B C de Jong, F G Cobelens, F van Leth
BACKGROUND: Multidrug-resistant tuberculosis (MDR-TB) is considered to be less transmissible due to the fitness cost associated with drug resistance-conferring mutations in essential genes. OBJECTIVE: To test the hypothesis that TB drug resistance-conferring mutations with fitness cost are more frequent among human immunodeficiency virus (HIV) positive than among HIV-negative patients. DESIGN: We analysed all strains from the two TB drug resistance surveys conducted in Uganda between 2008 and 2011...
May 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28399800/tst-positivity-in-household-contacts-of-tuberculosis-patients-a-case-contact-study-in-malawi
#12
Jonas Hector, Suzanne T Anderson, Gertrude Banda, Mercy Kamdolozi, Laura F Jefferys, Doris Shani, Natalie J Garton, Agnes Mwale, Annie Jobe, Geraint R Davies, Derek J Sloan
BACKGROUND: Screening household contacts of active tuberculosis (TB) patients is recommended for TB control. Due to resource constraints this rarely occurs in lower income countries. Demographic and clinical features of index cases may influence the likelihood of onwards TB transmission. It has also been proposed that accumulation of intracellular lipid bodies within M. tuberculosis cells may also enhance bacterial transmissibility. This study explored whether clinical and bacteriological observations recorded at baseline in TB cases in Malawi could help identify those with the highest risk of onwards transmission, to prioritise contact tracing...
April 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28399423/bone-mineral-density-and-vitamin-d-concentration-the-challenges-in-taking-care-of-children-and-adolescents-infected-with-hiv
#13
Fabiana Bononi Carmo, Maria Teresa Terreri, Regina Célia de Menezes Succi, Suenia Vasconcelos Beltrão, Aida de Fátima Tomé Barbosa Gouvea, Erica Regina Cruz Paulino, Daisy Maria Machado
The increase in life expectancy for patients living with human immunodeficiency virus (HIV) infection has resulted in health complications related to a chronic disease. OBJECTIVES: To evaluate the prevalence of bone mineral density (BMD) alterations and vitamin D concentrations in HIV-infected children and adolescents and to verify the variations in those parameters during a 12-month interval. METHODS: A prospective cohort study with a dual period of evaluation was conducted in 57 patients perinatally HIV-infected and one patient with sexual abuse in early infancy...
April 8, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28398995/integrating-pmtct-into-maternal-newborn-and-child-health-and-related-services-experiences-from-the-global-plan-priority-countries
#14
Karusa Kiragu, Lynn Collins, Deborah Von Zinkernagel, Angela Mushavi
The urgency to scale-up sustainable programs for the prevention of mother-to-child transmission of HIV (PMTCT) prompted priority countries of the Global Plan Toward the Elimination of New HIV Infections Among Children by 2015 and Keeping Their Mothers Alive (Global Plan) to expand the delivery of PMTCT services through greater integration with sexual and reproductive health and child health services. Countries approached integration-what, where, and how services are provided-in diverse ways, with predominantly favorable results...
May 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28392916/treatment-outcomes-of-tuberculosis-patients-in-nigist-eleni-mohammed-general-hospital-hosanna-southern-nations-nationalities-and-peoples-region-ethiopia-a-five-year-june-2009-to-august-2014-retrospective-study
#15
Tigist Mohammed, Kidist Daniel, Degefa Helamo, Taye Leta
BACKGROUND: Tuberculosis remains to be a major public health problem among under developed world due to delay in detection and treatment of patients with active TB. In Ethiopia, tuberculosis has been recognized as a major public health problem for more than fifty years. OBJECTIVE: The main objective of this study was to determine treatment outcomes and associated factors among TB patients attending Nigist Eleni Mohammed General Hospital, Hosanna, SNNPR, Ethiopia...
2017: Archives of Public Health, Archives Belges de Santé Publique
https://www.readbyqxmd.com/read/28392732/external-quality-assessment-in-resource-limited-countries
#16
Jane Y Carter
INTRODUCTION: Health laboratory services are a critical component of national health systems but face major operational challenges in resource-limited (RL) settings. New funding for health systems strengthening in RL countries has increased the demand for diagnostics and provided opportunities to address these constraints. An approach to sustainably strengthen national laboratory systems in sub-Saharan African countries is the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme...
February 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28392698/assessment-of-isoniazid-preventive-therapy-in-the-reduction-of-tuberculosis-among-art-patients-in-arba-minch-hospital-ethiopia
#17
Ashenafi Abossie, Tsegaye Yohanes
BACKGROUND: Tuberculosis (TB) is the most frequent life-threatening opportunistic disease among people living with HIV and remains a leading cause of mortality, even among persons receiving antiretroviral therapy (ART). Isoniazid preventive therapy (IPT) and cotrimoxazole prophylaxis have been recommended for the benefit of HIV/AIDS-infected individuals to prevent opportunistic infections. The aim of this study was to assess IPT prophylaxis in the reduction of TB among ART patients. METHODS: The study was a hospital-based retrospective study...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28388895/development-and-validation-of-a-prognostic-score-during-tuberculosis-treatment
#18
Eric Walter Pefura-Yone, Adamou Dodo Balkissou, Virginie Poka-Mayap, Hadja Koté Fatime-Abaicho, Patrick Thierry Enono-Edende, André Pascal Kengne
BACKGROUND: Death under care is a major challenge for tuberculosis (TB) treatment programs. We derived and validated a simple score to predict mortality during tuberculosis treatment in high endemicity areas. METHODS: We used data for patients aged ≥15 years, diagnosed and treated for tuberculosis at the Yaounde Jamot Hospital between January 2012 and December 2013. Baseline characteristics associated with mortality were investigated using logistic regressions...
April 8, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28388302/genome-wide-association-and-replication-study-of-hepatotoxicity-induced-by-antiretrovirals-alone-or-with-concomitant-anti-tuberculosis-drugs
#19
Zelalem Petros, Ming Ta Michael Lee, Atsushi Takahashi, Yanfei Zhang, Getnet Yimer, Abiy Habtewold, Ina Schuppe-Koistinen, Taisei Mushiroda, Eyasu Makonnen, Michiaki Kubo, Eleni Aklillu
Drug-induced hepatotoxicity (DIH) is a common adverse event that is associated with both antiretroviral (ARV) and anti-tuberculosis drugs (ATD). Moreover, the genetic variations predisposing ARV- and ARV-ATD-induced liver toxicity in African populations are not well investigated, despite the two diseases being the major global health problems in sub-Saharan Africa. We performed a genome-wide association study (GWAS) and replication study to identify the genetic variants linked to the risk of developing DIH due to ARV drugs alone, and ARV-ATD co-treatment in Ethiopian HIV-positive patients...
April 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28385088/plants-in-our-combating-strategies-against-mycobacterium-tuberculosis-progress-made-and-obstacles-met
#20
Vivek Kumar Gupta, M Madhan Kumar, Deepa Bisht, Anupam Kaushik
CONTEXT: Traditionally used plants for treating chest-related problems/tuberculosis (TB) have not been evaluated in detail and hence a thorough study is needed in this regard. This knowledge may find application in developing new anti-TB drugs. OBJECTIVE: This article elaborates on studying the activity of medicinal plants against different forms of Mycobacterium tuberculosis (Mtb) using different model strains, in vitro and ex vivo assays for studying the tuberculocidal activity and discusses the results from different studies on the activity against different forms of Mtb and human immunodeficiency virus-tuberculosis (HIV-TB) co-infection...
December 2017: Pharmaceutical Biology
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