169 research outputs found

    Evaluation of a community health worker intervention and the World Health Organization’s Option B versus Option A to improve antenatal care and PMTCT outcomes in Dar es Salaam, Tanzania: study protocol for a cluster-randomized controlled health systems implementation trial

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    Background: Mother-to-child transmission of HIV remains an important public health problem in sub-Saharan Africa. As HIV testing and linkage to PMTCT occurs in antenatal care (ANC), major challenges for any PMTCT option in developing countries, including Tanzania, are delays in the first ANC visit and a low overall number of visits. Community health workers (CHWs) have been effective in various settings in increasing the uptake of clinical services and improving treatment retention and adherence. At the beginning of this trial in January 2013, the World Health Organization recommended either of two medication regimens, Option A or B, for prevention of mother-to-child transmission of HIV (PMTCT). It is still largely unclear which option is more effective when implemented in a public healthcare system. This study aims to determine the effectiveness, cost-effectiveness, acceptability, and feasibility of: (1) a community health worker (CWH) intervention and (2) PMTCT Option B in improving ANC and PMTCT outcomes. Methods/Design This study is a cluster-randomized controlled health systems implementation trial with a two-by-two factorial design. All 60 administrative wards in the Kinondoni and Ilala districts in Dar es Salaam were first randomly allocated to either receiving the CHW intervention or not, and then to receiving either Option B or A. Under the standard of care, facility-based health workers follow up on patients who have missed scheduled appointments for PMTCT, first through a telephone call and then with a home visit. In the wards receiving the CHW intervention, the CHWs: (1) identify pregnant women through home visits and refer them to antenatal care; (2) provide education to pregnant women on antenatal care, PMTCT, birth, and postnatal care; (3) routinely follow up on all pregnant women to ascertain whether they have attended ANC; and (4) follow up on women who have missed ANC or PMTCT appointments. Trial registration ClinicalTrials.gov: EJF22802. Registration date: 14 May 2013. Electronic supplementary material The online version of this article (doi:10.1186/1745-6215-15-359) contains supplementary material, which is available to authorized users

    Virtual Risk Management—Exploring Effects of Childhood Risk Experiences through Innovative Methods (ViRMa) for Primary School Children in Norway: Study Protocol for the ViRMa Project

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    Research indicates that risky play benefits children’s risk assessment and risk management skills and offers several positive health effects such as resilience, social skills, physical activity, well-being, and involvement. There are also indications that the lack of risky play and autonomy increases the likelihood of anxiety. Despite its well-documented importance, and the willingness of children to engage in risky play, this type of play is increasingly restricted. Assessing long-term effects of risky play has been problematic because of ethical issues with conducting studies designed to allow or encourage children to take physical risks with the potential of injury.Virtual Risk Management—Exploring Effects of Childhood Risk Experiences through Innovative Methods (ViRMa) for Primary School Children in Norway: Study Protocol for the ViRMa ProjectpublishedVersio

    Reasons Influencing PrEP continuity among Key and Priority Populations in Tabora region, Tanzania. A cross-sectional study.

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    Background: In Tabora, PrEP continuity 6 months after among newly enrolled among Key and Priority Population (KPP) is low at 47%. However, information on reasons influencing to PrEP continuity in KPP in Tabora is limited. We report study findings from nine (9) health facilities (HFs) in the Tabora region. Methodology:  This was a cross-sectional survey, deployed both quantitative and qualitative methods. 425 current or previous PrEP beneficiaries started PrEP between July 2020 to January 2021 were administered with a structured questionnaire, whereby 157 participants were purposively selected for 18 focused group discussions (FGDs). Recruitment of study participants carried between February to April 2022. Results: A total of 425 KPPs, aged 15-70 years with average 30 years, the majority 288(58%) were FSWs, the proportion of interruption was 25(20.5%). Reported reasons for PrEP interruptions, (57%) were due to drug side effects and the least was migration (3%). There was an association between interruptions and clients’ age (P<0.05), area of service offered (P=0.010.) and being knowledgeable about PrEP: (P<0.05). There is significant relationship between awareness and PrEP interruptions, though in proportions of those aware and had interruptions was at 33%. Conclusion: Drugs side effects, misconception, stigma, pill burden and migration were cited among influencing reasons for PrEP interruptions. Recommendations: Interventional study recommended to explore on the reasons cited for PrEP discontinuity in reaching PrEP goals in prevention services

    Are Zinc-Finger Domains of Protein Kinase C Dynamic Structures That Unfold by Lipid or Redox Activation?

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    Protein kinase C (PKC) is activated by lipid second messengers or redox action, raising the question whether these activation modes involve the same or alternate mechanisms. Here we show that both lipid activators and oxidation target the zinc-finger domains of PKC, suggesting a unifying activation mechanism. We found that lipid agonist-binding or redox action leads to zinc release and disassembly of zinc fingers, thus triggering large-scale unfolding that underlies conversion to the active enzyme. These results suggest that PKC zinc fingers, originally considered purely structural devices, are in fact redox-sensitive flexible hinges, whose conformation is controlled both by redox conditions and lipid agonists. Antioxid. Redox Signal. 14, 757-766.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90473/1/ars-2E2010-2E3773.pd
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