Mirella de Paiva Lopes

Mrs. Mirella de Paiva Lopes

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 June 2021 in Nutrients
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Journal Article
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MMMalaine Morais Alves Machado
Malaine Morais Alves Machado
MLMirella de Paiva Lopes
Mirella de Paiva Lopes
RSRaquel Machado Schincaglia
Raquel Machado Schincaglia
PCPaulo Sucasas Costa
Paulo Sucasas Costa
ACAlexandre Coelho
Alexandre Coelho
MHMaria Claret Costa Monteiro Hadler
Maria Claret Costa Monteiro Hadler
Fortification with multiple micronutrient powder has been proposed as a public health intervention able to reduce micronutrient deficiencies in children. Our objective was to compare the effectiveness of fortification with multiple micronutrient powder with drug supplementation in the prevention and treatment of iron deficiency and anaemia. This was a cluster trial with anemic and non-anaemic children between six and 42 months old, in randomization data. Non anaemic children received fortification with multiple micronutrient powder or standard drug supplementation of ferrous sulfate associated with folic acid in a prevention dose. Anaemic children who were randomized to receive multiple micronutrient powder also received the recommended iron complementation for anaemia treatment. A total of 162 children were evaluated. The prevalence of anaemia decreased from 13.58 to 1.85%. Iron deficiency decreased from 21.74% to 7.89% (by serum ferritin) and iron deficiency decreased from 66.81 to 38.27% (by soluble transferrin receptor). No difference was identified between interventions for hemoglobin (p = 0.142), serum ferritin (p = 0.288), and soluble transferrin receptor (p = 0.156). Fortification with multiple micronutrient powder was effective in preventing iron deficiency and anaemia in children aged six to 48 months. In anaemic children; it was necessary to supplement the dose of multiple micronutrient powder with ferrous sulfate.

7 April 2023 in Nutrients
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Journal Article
Open access
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ASAna Paula Siqueira
Ana Paula Siqueira
JSJéssika Martins Siqueira
Jéssika Martins Siqueira
MLMirella de Paiva Lopes
Mirella de Paiva Lopes
GPGustavo D Pimentel
Gustavo D Pimentel
Background and aims: Juçara is a fruit of ecological and nutritional importance. Its fruits represent an option for the sustainable use of the plant due to its vulnerability to extinction. Thus, the aim of this review was to analyze clinical and experimental studies and highlight the literature gaps regarding the effects of supplementation with Juçara on health. Methods: For this scoping review, we consulted the Medline (PubMed), Science Direct, and Scopus databases in March, April, and May 2022. Experimental studies and clinical trials published in the last ten years (2012–2022) were analyzed. Data were synthesized and reported. Results: A total of 27 studies were included, 18 of which were experimental studies. Of these, 33% evaluated inflammatory markers associated with fat accumulation. Most of these studies (83%) used pulp in lyophilized form, and the others (17%) involved juçara extract mixed in water. In addition, 78% of the studies showed positive results with respect to the lipid profile, reduction of oncological lesions, inflammation, microbiota modulation, and improvement in obesity and glycemia-related metabolic complications. Nine clinical trials with results similar to those of experimental trials were found. The majority (56%) were chronic (four to six weeks into the intervention), and 44% were acute. Three offered juçara supplementation in the form of juice, four used freeze-dried pulp, two used fresh pulp, and one used a 9% dilution. The dose was fixed at 5 g, but the dilution ranged from 200 to 450 mL. These trials assessed mainly healthy, physically active, and obese individual adults (19–56 years old), and cardioprotective and anti-inflammatory effects, as well as improvement in the lipid profile and prebiotic potential, were observed. Conclusion: Juçara supplementation showed promising results with respect to its effect on health. However, further studies are needed to clarify these possible effects on health and their mechanisms of action.

22 August 2023 in British Journal of Nutrition
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Journal Article
Closed access
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NSNatalia Menezes Silva
Natalia Menezes Silva
MLMirella de Paiva Lopes
Mirella de Paiva Lopes
RSRaquel Machado Schincaglia
Raquel Machado Schincaglia
ACAlexandre Coelho
Alexandre Coelho
CCCristiane Cominetti
Cristiane Cominetti
MHMaria Claret Costa Monteiro Hadler
Maria Claret Costa Monteiro Hadler
Fe-deficiency anaemia is a major public health concern in children under 5 years of age. TMPRSS6 gene, encoding matriptase-2 protein, is implicated in Fe homoeostasis and has been associated with anaemia and Fe status in various populations. The aim of this cross-sectional study was to investigate the associations between the single nucleotide polymorphism (SNP) TMPRSS6 rs855791 and biomarkers of anaemia and Fe deficiency in Brazilian children attending day care centres. A total of 163 children aged 6–42 months were evaluated. Socio-economic, demographic, biochemical, haematological, immunological and genotype data were collected. Multiple logistic and linear regressions with hierarchical selection were used to assess the effects of independent variables on categorised outcomes and blood marker concentrations. Minor allele (T) frequency of rs855791 was 0·399. Each copy of the T allele was associated with a 4·49-fold increased risk of developing anaemia (P = 0·005) and a 4·23-fold increased risk of Fe deficiency assessed by serum soluble transferrin receptor (sTfR) (P < 0·001). The dose of the T allele was associated with an increase of 0·18 mg/l in sTfR concentrations and reductions of 1·41 fl and 0·52 pg in mean corpuscular volume (MCV) and mean corpuscular haemoglobin (MCH), respectively. In conclusion, the T allele of SNP TMPRSS6 rs855791 was significantly associated with anaemia and Fe deficiency assessed by sTfR in Brazilian children attending day care centres. The effect was dose dependent, with each copy of the T allele being associated with lower MCV and MCH and higher concentrations of sTfR.

5 December 2024 in Applied Sciences
Verified
Journal Article
Open access
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ASAna Paula Siqueira
Ana Paula Siqueira
JSJéssika Martins Siqueira
Jéssika Martins Siqueira
MLMirella de Paiva Lopes
Mirella de Paiva Lopes
BCBárbara Silva Carneiro
Bárbara Silva Carneiro
GPGustavo D Pimentel
Gustavo D Pimentel
Juçara is an important element for biodiversity in the Atlantic Forest, not only providing a rich source of nutritional and bioactive compounds, but also holding promising potential for sustainability. However, despite its virtues, there remains a dearth of studies fully exploring its potential. In our pioneering study, conducted using a panel of eight trained specialists, we delved into a sensory analysis of dehydrated juçara pulp, employing both descriptive analysis and the temporal dominance of sensations (TDS) technique. The findings revealed striking differences between juçara and açaí, not only in terms of flavor and aroma, but also in their potential to drive more mindful eating habits. By promoting the consumption of juçara, we are supporting the sustainability of the Atlantic Forest, where it is cultivated in an environmentally responsible manner. Thus, we are contributing to the preservation of this unique ecosystem and the well-being of local communities.