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Metabo groups in response to micronutrient intervention: Pilot study.

ABSTRACT: Micronutrients and their metabolites are cofactors in proteins involved in lipid metabolism. The present study was a subproject of the Harmonized Micronutrient Project (ClinTrials.gov # NCT01823744). Twenty participants were randomly selected from 136 children and adolescents that consumed a daily dose of 12 vitamins and 5 minerals supplementation for 6 weeks. The 20 individuals were divided into two pools of 10 individuals, according to their lipid profile at baseline (Pool 1 with lower triglycerides, LDL, and VLDL). The individuals were analyzed at baseline, after 6 weeks of daily supplementation, and after 6 weeks of a washout period in relation to anthropometric, body composition, food intake, lipid profile, micronutrient levels, and iTRAQ proteomic data. Genetic ancestry and its association with vitamin serum levels were also determined. After supplementation, LDL levels decreased while alpha-tocopherol and pantothenic acid levels increased in pool 2; lipid profiles in pool 1 did not change but had higher plasma levels of pantothenic acid, pyridoxal, and pyridoxic acid. In pool 2, expression of some proteins increased, and expression of other ones decreased after intervention, while in pool 1, the same proteins responded inversely or did not change their levels. Plasma alpha-tocopherol and Native American genetic ancestry explained a significant fraction of LDL plasma levels at baseline and in response to the intervention. After intervention, changes in expression of alpha-1 antitrypsin, haptoglobin, Ig alpha-1 chain C region, plasma protease C1 inhibitor, alpha-1-acid glycoprotein 1, fibrinogen alpha, beta, and gamma-chain in individuals in pool 2 may be associated with levels of LDL and vitamin E. Vitamin E and Native American genetic ancestry may also be implicated in changes of vitamin E and LDL levels. The results of this pilot study must be validated in future studies with larger sample size or in in vitro studies.

SUBMITTER: Coelho-Landell CA

PROVIDER: S-EPMC6977437 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Metabo groups in response to micronutrient intervention: Pilot study.

Coelho-Landell Carolina Almeida CA Salomão Roberta Garcia RG Almada Maria Olimpia Ribeiro do Vale MORDV Mathias Mariana Giaretta MG Toffano Roseli Borges Donega RBD Hillesheim Elaine E Barros Tamiris Trevisan TT Camarneiro Joyce Moraes JM Camelo-Junior José Simon JS Rosa José Cesar JC Izumi Clarice C Czernisz Érika É Moco Sofia S Kaput Jim J Monteiro Jacqueline Pontes JP

Food science & nutrition 20191219 1

Micronutrients and their metabolites are cofactors in proteins involved in lipid metabolism. The present study was a subproject of the Harmonized Micronutrient Project (ClinTrials.gov # NCT01823744). Twenty participants were randomly selected from 136 children and adolescents that consumed a daily dose of 12 vitamins and 5 minerals supplementation for 6 weeks. The 20 individuals were divided into two pools of 10 individuals, according to their lipid profile at baseline (Pool 1 with lower triglyc ...[more]

PMID: 31993192

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Project description:BackgroundMobile technology can support HIV care, but studies in youth are limited. In 2014, youth receiving HIV care at several health care facilities in Nairobi, Kenya spontaneously formed peer support groups using the social media platform WhatsApp.ObjectiveInspired by youth-initiated groups, we aimed to evaluate the use of WhatsApp to deliver a social support intervention to improve HIV treatment and psychosocial outcomes in youth. We developed a facilitated WhatsApp group intervention (named Vijana-SMART), which was grounded in social support theory and guided by the design recommendations of youth living with HIV. This paper evaluates the intervention's acceptability and pre-post changes in health outcomes.MethodsThe intervention involved interactive WhatsApp groups facilitated by study staff for 6 months, with each group having approximately 25 members. Study staff sent weekly structured messages, and the message content was based on social support theory and encouraged unstructured peer-to-peer messaging and support. We conducted a single-arm pilot among 55 youth living with HIV aged 14-24 years recruited from a government health care facility serving a mixed-income area of Nairobi. At enrollment and follow-up, self-report questionnaires assessed acceptability; antiretroviral therapy (ART) information, motivation, and behavioral skills (IMB); depression; social support; stigma; resilience; and ART adherence. All participants received the intervention. We used generalized estimating equations (GEEs) clustered by participant to evaluate changes in scores from baseline to follow-up, and correlates of participant WhatsApp messaging.ResultsThe median participant age was 18 years, and 67% (37/55) were female. Intervention acceptability was high. All participants reported that it was helpful, and 73% (38/52) sent ≥1 WhatsApp message. Messaging levels varied considerably between participants and were higher during school holidays, earlier in the intervention period, and among youth aged ≥18 years. IMB scores increased from enrollment to follow-up (66.9% to 71.3%; P<.001). Stigma scores also increased (8.3% to 16.7%; P=.001), and resilience scores decreased (75.0% to 70.0%; P<.001). We found no significant change in ART adherence, social support, or depression. We detected a positive association between the level of messaging during the study and the resilience score, but no significant association between messaging and other outcomes. Once enrolled, it was common for participants to change their phone numbers or leave the groups and request to be added back, which may present implementation challenges at a larger scale.ConclusionsIncreased IMB scores following WhatsApp group participation may improve HIV outcomes. Increased stigma and decreased resilience were unintended consequences and may reflect transient effects of group sharing of challenging experiences, which should be addressed in larger randomized evaluations. WhatsApp groups present a promising and acceptable modality to deliver supportive interventions to youth living with HIV beyond the clinic, and further evaluation is warranted.Trial registrationClinicalTrials.gov (NCT05634265); https://clinicaltrials.gov/study/NCT05634265.

Project description:BackgroundBlack men and their communities are more affected by HIV. Although they constitute less than 5% of the Ontarian population, they accounted for 26% of new HIV diagnoses in 2015, nearly half of which (48.6%) were attributed to heterosexual contact. HIV stigma and discrimination reinforce African, Caribbean, and Black men's HIV vulnerability by creating unsafe environments that deter them from testing and disclosure, resulting in isolation, depression, delayed diagnosis and linkage to treatment and care, and poor health outcomes. In response to these challenges, intergenerational strategies were identified from previous community-based participatory studies as best practices to reduce HIV vulnerabilities and promote resilience among heterosexual Black men and communities. The proposed intervention is premised on this recommendation of intergenerational intervention.ObjectiveThe overarching objective is to engage heterosexual Black men and communities in cocreating a community centered, culturally safe intergenerational intervention to reduce HIV vulnerabilities and related health disparities.MethodsWe will engage 12 diverse community stakeholders in Ontario, inclusive of heterosexual Black men, in 8 weekly sessions to evaluate existing evidence of effective HIV health literacy interventions, identify essential and relevant aspects, and work collaboratively to co-design the HIV-Response Intergenerational Participation (HIP) intervention for use with Black men and communities. Next, we will recruit 24 self-identified heterosexual Black men aged 18-29, 29-49, and ≥50 years. We will pilot and evaluate the HIP intervention with 24 heterosexual Black men from these 3 age groups (split as 2 events: a total of 12 participants in person in Toronto and 12 participants on the web in Windsor, London, and Ottawa). We will use the data obtained along with questionnaires from validated scales and focus groups to evaluate the effectiveness of HIP. The data will include HIV knowledge, perceived stigma toward people living with HIV, acceptance and uptake of HIV testing, preexposure prophylaxis (PrEP), postexposure prophylaxis (PEP), and condom use. We will also collect data related to perceptions about system-level factors such as discrimination, socially misconstrued masculine identity, etc. Quantitative analysis will essentially be a univariate descriptive analysis. We will use thematic analysis to highlight the results of the focus group discussions. Finally, we will disseminate the evaluation results and engage researchers, leaders, Black men, and communities to expand the project team and scale up the intervention in Ontario and across Canada.ResultsImplementation commences by May 2023, and by September 2023, we should have produced, among others, an evidence-informed HIP intervention that can be adapted for use by heterosexual Black men and communities beyond Ontario.ConclusionsThe pilot intervention will strengthen critical health literacy and build resilience against HIV through intergenerational dialogue among heterosexual Black men of all ages.International registered report identifier (irrid)PRR1-10.2196/48829.

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Metabo groups in response to micronutrient intervention: Pilot study.

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Metabo groups in response to micronutrient intervention: Pilot study.

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