Association Between Iron, Folate, and Zinc Deficiencies During Pregnancy and Low Birth Weight: Systematic Review of Cohort Studies.

Context: Iron, folate, and zinc deficiencies during the gestational period may be associated with negative perinatal outcomes, such as low birth weight (LBW), but these relationships are not yet fully established in the scientific literature and require further investigation.

Objective: To systematically review the scientific production to investigate the association between iron, folate, and zinc deficiencies during pregnancy and LBW.

Data Sources: The search was carried out using high-sensitivity descriptors in the English, Portuguese, and Spanish languages, combined with Boolean operators, adapted to each of the following indexed databases: MEDLINE via PubMed, Embase, LILACS via BVS, CENTRAL, and Web of Science.

Racial Disparities in Medication Use During Pregnancy: Results from the NISAMI Cohort.

Purpose: This study aimed to evaluate racial disparities in medication use and associated factors among pregnant women receiving prenatal care at Brazilian Unified Health System primary care health units in the northeast region.

Patients And Methods: A total of 1058 pregnant women in the NISAMI Cohort were interviewed between June 2012 and February 2014. Medicines used during pregnancy were classified according to the Anatomical Therapeutic Chemical (ATC) classification system and ANVISA pregnancy risk categories.

Pesticide contamination of lactating mothers' milk in Latin America: a systematic review.

Objective: To identify the prevalence of contamination by pesticides and their metabolites in the milk of lactating mothers in Latin America.

Methods: In this systematic review, the PubMed, LILACS, Embase, and Scopus databases were searched up to January 2022 to identify observational studies. The Mendeley software was used to manage these references.

Post-partum weight retention in Northeastern Brazilian women: a prospective NISAMI cohort study.

Background: Weight retention during the post-partum period is associated with excessive weight gain.

Objectives: To investigate factors associated with maternal weight retention at six months post-partum (PPWR).

Design And Setting: A prospective cohort study was conducted with 127 women monitored using prenatal services.

Validation and calibration of the Food Consumption Frequency Questionnaire for pregnant women.

Background: Few food frequency questionnaires (FFQ) have been validated for pregnant women, particularly those in small- and medium-sized cities in different regions of Brazil.

Objectives: To validate and calibrate a semiquantitative FFQ for pregnant women.

Design And Setting: The study was validated with a sample of 50 pregnant women (≥ 18 years) enrolled in Brazilian prenatal services.

Influence of conditional cash transfer program on prenatal care and nutrition during pregnancy: NISAMI cohort study.

Background: There are few studies on the influence of a cash transfer program on nutritional outcomes from pregnancy.

Objectives: To analyze how a Brazilian conditional cash transfer program (Bolsa Familia Program, BFP) was associated with changes in body mass index (BMI) and food consumption among pregnant women.

Design And Setting: Cohort study on 250 pregnant women (≥ 18 years of age) in Brazilian prenatal services.

FADS1 and FADS2 Gene Polymorphisms Modulate the Relationship of Omega-3 and Omega-6 Fatty Acid Plasma Concentrations in Gestational Weight Gain: A NISAMI Cohort Study.

The polymorphisms of fatty acid desaturase genes FADS1 and FADS2 have been associated with an increase in weight gain. We investigated FADS1 and FADS2 gene polymorphisms and the relation between ω-3 and ω-6 fatty acid plasma concentrations and gestational weight gain. A prospective cohort study of 199 pregnant women was followed in Santo Antônio de Jesus, Brazil.

Socioeconomic and nutritional aspects of pregnant women assisted by Programa Bolsa Família: cohort NISAMI.

The objective of this study was to evaluate the socioeconomic and nutritional assistance factors of pregnant women who are beneficiaries of the Bolsa Família Program and were attended at a prenatal service in the city of Recôncavo da Bahia. A cohort study was conducted with 250 pregnant women from the prenatal service in 16 Family Health Units from August 2013 to December 2014. A structured and previously tested questionnaire was used to collect data.

Polyunsaturated fatty acid consumption and weight gain during pregnancy: NISAMI Cohort study.

Objectives: Few studies have investigated the influence of polyunsaturated fatty acid consumption on excessive weight gain during pregnancy. Thus, we analyzed the association between the intake of polyunsaturated fatty acids (ω-6 and ω-3) and weight gain in women during pregnancy.

Methods: This is a cohort study of 250 pregnant women enrolled in municipal pre-natal services.

Investigation of maternal polymorphisms in genes related to glucose homeostasis and the influence on birth weight: a cohort study.

Objectives: To contribute to a better understanding of the maternal genetic mechanisms that influence obstetric outcomes and that are involved in maternal and child health, this study aimed to evaluate the association between maternal genetic variants and the offspring birth weight by analyzing single-nucleotide polymorphisms (SNPs) in genes related to glucose homeostasis.

Methods: Three polymorphisms were analyzed (GCK rs1799884, TCF7L2 rs7903146 and LEPR rs1137101) in 250 pregnant women who participated in a Brazilian prospective cohort study. Genotyping was performed by Real-Time Polymerase Chain Reaction (qPCR) using pre-designed TaqMan® SNP genotyping assays.

Dietary intake of university students during COVID-19 social distancing in the Northeast of Brazil and associated factors.

This study aimed to analyze the influence of COVID-19 social distancing on the dietary pattern of university students in the Northeast of Brazil and associated factors. This is a cross-sectional study of 955 students from four universities carried out via a web survey containing social, economic, demographic, and health information. A food frequency questionnaire was used to evaluate diet.