The effects of blueberry and cranberry supplementation on blood pressure in patients with cardiovascular diseases: A systematic review and meta-analysis of randomized clinical trials.

Blueberries and cranberries are berry fruits with the highest number of randomized clinical trials (RCTs) focusing on blood pressure (BP). This systematic review and meta-analysis of RCTs analyzed the effects of blueberry and cranberry supplementation alone and in concert with systolic BP (SBP) and diastolic BP (DBP) in patients with cardiometabolic diseases. The searches were performed until August 2023 in the following databases: PubMed, Scopus, Web of Science, Cochrane, and Embase. Studies that examined the effects of blueberry or cranberry intake/supplementation were included. The risk of bias was evaluated using the Rob 2 scale. A meta-analysis was performed to estimate the effects of blueberry and cranberry supplementation on BP levels in patients with cardiometabolic diseases. A total of 17 articles were included, from which two found significant results from blueberry and/or cranberry supplementation in reducing BP. Pooled results revealed statistically non-significant reductions of -0.81 mm Hg for SBP (95% confidence interval [CI]: -2.26, 0.63; I2 = 0%) and -0.15 mm Hg for DBP (95% CI: -1.36, 1.05; I2 = 27%). Blueberry and/or cranberry supplementation had neutral effects on SBP and DBP in patients with cardiometabolic diseases, regardless of duration or age. Further high-quality studies are needed to firmly establish clinical efficacy.

Effects of blueberry and cranberry on type 2 diabetes parameters in individuals with or without diabetes: A systematic review and meta-analysis of randomized clinical trials.

AIMS: Blueberry and cranberry are rich in polyphenols that are associated with diabetes reduction. This study aimed: 1) to systematically review the literature on the effects of blueberry and cranberry consumption and type 2 diabetes parameters in individuals with or without type 2 diabetes and 2) to quantify these effects by carrying out a meta-analysis. DATA SYNTHESIS: A systematic review and meta-analysis were performed using articles present in seven databases (PubMed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase), including publications until May 2021. We included randomized clinical trials that compared blueberry or cranberry effects on type 2 diabetes parameters, such as fasting blood glucose, insulin resistance, and glycated hemoglobin. Quality of the studies was performed using the Cochrane scale, while the Egger test assessed the publication bias and meta-regression the estimated effect sizes with potential moderator variables. From the 2034 studies identified, 39 were read in full and 22 were included in meta-analysis. In individuals with diabetes, the consumption of blueberry or cranberry significantly reduced fasting blood glucose [MD: -17.72 mg/dl; 95% CI: -29.62, -5.82; p = 0.03; I2 = 57%] and glycated hemoglobin [MD: -0.32%; 95% CI: -0.57, -0.07; p = 0.15; I2 = 39%], whereas for insulin resistance the effects were null. Results were not significant for the general population, except in the sensitivity analysis for fasting blood glucose. CONCLUSIONS: The consumption of blueberry and cranberry significantly reduced fasting blood glucose and glycated hemoglobin levels in individuals with diabetes, with high credibility of the evidence.

Recommendation and use of ferrous sulphate in 12- and 24-month-old children: evaluation in the 2015 Pelotas Birth Cohort. / Recomendação e uso de sulfato ferroso em crianças de 12 e 24 meses de idade: avaliação da coorte de nascimentos de Pelotas, RS, de 2015.

AIM: To verify the prevalence of recommendation of iron supplementation among children aged 12 and 24 months. METHODOLOGY: All children born in the maternities of Pelotas/RS in 2015 were eligible for the Cohort. The outcomes were the recommendation of ferrous sulphate by health professionals and its use. RESULTS: The cohort followed up 4,275 children. Approximately 64.0% of them were recommended to receive iron supplementation until 12 months of age. Among these, 68.8% used iron. From 12 to 24 months, 39.4% of the children received a prescription of iron supplementation, and among them, 26.2% actually used it. At 12 months, after adjusted analysis, higher maternal education, higher family income, lower parity, and low birth weight remained associated with the outcome. At 24 months, after adjusted analysis, we observed a higher recommendation of iron supplementation among mother with lower parity and for children with low birth weight. CONCLUSION: There was a low frequency of recommendation and low rate of use of iron among children. These findings are highly relevant given the high prevalence of anemia observed in children this year. The low recommendation of iron use among children up to 24 months of age, and the low use among those who are recommended to use it reflect the need for coordinated actions among health professionals and the expansion of knowledge among mothers to enable a wider reach of this important public policy.

Recomendação e uso de sulfato ferroso em crianças de 12 e 24 meses de idade: avaliação da coorte de nascimentos de Pelotas, RS, de 2015 / Recommendation and use of ferrous sulphate in 12- and 24-month-old children: evaluation in the 2015 Pelotas Birth Cohort

RESUMO: Objetivo: Verificar a prevalência e os fatores associados à recomendação de uso de ferro a crianças aos 12 e aos 24 meses de idade. Metodologia: Todas as crianças nascidas nas maternidades de Pelotas em 2015 foram elegíveis para a coorte. Os desfechos foram a recomendação de uso de sulfato ferroso por profissional de saúde e a respectiva utilização. Resultados: A coorte acompanhou 4.275 crianças. Aproximadamente 65% receberam recomendação de suplementação de ferro até 12 meses. Destas, 68,8% fizeram a utilização recomendada. Dos 12 aos 24 meses, 39,4% das crianças receberam recomendação de suplementação de ferro e 26,2% fizeram o uso recomendado. Aos 12 meses, após ajuste, permaneceram associadas com recomendação de uso de ferro: maior escolaridade, maior renda, menor paridade e baixo peso ao nascer. Aos 24 meses, após ajuste, observou-se maior recomendação às mães com menor paridade e às crianças com baixo peso ao nascer. Conclusão: Houve baixa recomendação e baixa utilização de ferro. Esses achados são preocupantes diante da alta prevalência de anemia em crianças na faixa etária estudada. A baixa recomendação de profilaxia de ferro a crianças até 24 meses de idade, assim como a baixa utilização entre aquelas que receberam a orientação de uso refletem a necessidade de ações coordenadas entre profissionais de saúde e de ampliação do conhecimento entre as mães para possibilitar maior alcance dessa importante política pública.

ABSTRACT: Aim: To verify the prevalence of recommendation of iron supplementation among children aged 12 and 24 months. Methodology: All children born in the maternities of Pelotas/RS in 2015 were eligible for the Cohort. The outcomes were the recommendation of ferrous sulphate by health professionals and its use. Results: The cohort followed up 4,275 children. Approximately 64.0% of them were recommended to receive iron supplementation until 12 months of age. Among these, 68.8% used iron. From 12 to 24 months, 39.4% of the children received a prescription of iron supplementation, and among them, 26.2% actually used it. At 12 months, after adjusted analysis, higher maternal education, higher family income, lower parity, and low birth weight remained associated with the outcome. At 24 months, after adjusted analysis, we observed a higher recommendation of iron supplementation among mother with lower parity and for children with low birth weight. Conclusion: There was a low frequency of recommendation and low rate of use of iron among children. These findings are highly relevant given the high prevalence of anemia observed in children this year. The low recommendation of iron use among children up to 24 months of age, and the low use among those who are recommended to use it reflect the need for coordinated actions among health professionals and the expansion of knowledge among mothers to enable a wider reach of this important public policy.