Factors associated with the length of breastfeeding during the COVID-19 pandemic: a survival study.

Objective: To investigate the repercussions of COVID-19 on the length of breastfeeding and analyze the associated factors in Belo Horizonte, Minas Gerais, Brazil.

Method: This is an epidemiological, prospective cohort study. Data were collected from medical records and through telephone interviews.

Lipid profile and fatty acid composition of marine fish species from Northeast coast of Brazil.

Total lipid content, fatty acid composition and nutritional profile of lipid fraction of fourteen fish species from the Brazilian Northeastern coast were evaluated. Lipid content was determined by Bligh and Dyer methodology, whereas the fatty acid composition was determined by gas chromatography with flame ionization detector. The indices of atherogenicity, thrombogenicity and hypocholesterolemic/hypercholesterolemic ratio were used to evaluate the nutritional quality of lipid fraction.

Myocardial Infarction in a Young Cocaine User with Atrial Myxoma: What is the Central Cause?

The differential diagnosis of myocardial infarction in patients with a number of potential causes can be challenging, especially when there is no angiographic evidence of coronary obstruction. We describe a case of extensive anterior ST-elevation myocardial infarction in a young male smoker who had a left atrial myxoma and a history of cocaine use 10 hours before the event. Clinical reasoning during a myocardial infarction investigation should be oriented by the probability of the causal relationship between the ischemic event and each factor present in the clinical context.

Reference Equations for Impulse Oscillometry System Parameters in Healthy Brazilian Children and Adolescents.

Background: The impulse oscillometry system is a noninvasive method of evaluating respiratory mechanics that is being increasingly used in the pediatric population. To date, no reference equations have been developed for healthy Brazilian children and adolescents. The purpose of the study was to determine the reference equations for impulse oscillometry system parameters in healthy children and adolescents.

Anti-Mycobacterium tuberculosis Activity of Calophyllum brasiliense Extracts Obtained by Supercritical Fluid Extraction and Conventional Techniques.

The conventional techniques used to extract natural products have many disadvantages, and alternative methods have been used, such as supercritical fluid extraction (SFE-CO2). We compared the anti-Mycobacterium tuberculosis activity and cytotoxicity of extracts and major pure compounds were obtained from the leaves of Calophyllum brasiliense by SFE-CO2, maceration and Soxhlet. Anti-M tuberculosis activity was evaluated by resazurin microtiter assay plate and cytotoxicity assay was performed using 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide.

Manual vibrocompression and nasotracheal suctioning in post-operative period of infants with heart defects.

Objective: To evaluate the impact of manual vibrocompression and nasotracheal suctioning on heart (hr) and respiratory (rr) rates, peripheral oxygen saturation (SpO(2)), pain and respiratory distress in infants in the postoperative period of a cardiac surgery.

Methods: Randomized controlled trial, in which the assessments were performed by the same physiotherapist in two moments: before and after the procedure. The infants were randomly divided into two groups: Intervention (IG), with manual chest vibrocompression, nasotracheal suctioning and resting; and Control CG), with 30 minutes of rest.

Comparing conventional and supercritical extraction of (-)-mammea A/BB and the antioxidant activity of Calophyllum brasiliense extracts.

Calophyllum brasiliense is a rich source of bioactive coumarins, xanthones and biflavonoids. The aim of the study was to compare the phenol contents and the antioxidant activity of C. brasiliense extracts obtained by conventional and supercritical fluid extraction (SFE) methods, as well as the quantification of crude extracts and (-)-mammea A/BB yields.

[Relationship between lead levels in colostrum, dietary intake, and socioeconomic characteristics of puerperal women in Goiânia, Brazil].

Objective: To estimate the levels of lead in human colostrum and investigate whether they are correlated with dietary intake and socioeconomic factors in puerperal women.

Method: This cross-sectional study was carried out with 80 puerperal women from a maternity hospital in Goiânia, Brazil. Data were collected between July and December 2008.

[Cadmium in human milk: concentration and relation with the lifestyle of women in the puerperium period].

Purpose: To relate the cadmium concentration of colostrum with the lifestyle of women in the puerperium period.

Methods: A cross-sectional study was conducted in Goiânia, Goiás (Mid-western Region of Brazil). Eighty women, according to inclusion criteria, were interviewed about their socioeconomic characteristics and lifestyle.