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- Individualized Fortification Based on Measured Macronutrient Content of Human Milk Improves Growth and Body Composition in Infants Born Less than 33 Weeks: A Mixed-Cohort StudyPublication . Cardoso, M; Virella, D; Papoila, AL; Alves, M; Macedo, I; e Silva, D; Pereira-da-Silva, LThe optimal method for human milk (HM) fortification has not yet been determined. This study assessed whether fortification relying on measured HM macronutrient content (Miris AB analyzer, Upsala, Sweden) composition is superior to fortification based on assumed HM macronutrient content, to optimize the nutrition support, growth, and body composition in infants born at <33 weeks' gestation. In a mixed-cohort study, 57 infants fed fortified HM based on its measured content were compared with 58 infants fed fortified HM based on its assumed content, for a median of 28 and 23 exposure days, respectively. The ESPGHAN 2010 guidelines for preterm enteral nutrition were followed. Growth assessment was based on body weight, length, and head circumference Δ z-scores, and the respective growth velocities until discharge. Body composition was assessed using air displacement plethysmography. Fortification based on measured HM content provided significantly higher energy, fat, and carbohydrate intakes, although with a lower protein intake in infants weighing ≥ 1 kg and lower protein-to-energy ratio in infants weighing < 1 kg. Infants fed fortified HM based on its measured content were discharged with significantly better weight gain, length, and head growth. These infants had significantly lower adiposity and greater lean mass near term-equivalent age, despite receiving higher in-hospital energy and fat intakes, with a mean fat intake higher than the maximum recommended and a median protein-to-energy ratio intake (in infants weighing < 1 kg) lower than the minimum recommended.
- Protein Intake, Adherence to Vitamin–Mineral Supplementation, and Dumping Syndrome in Patients Undergoing One Anastomosis Gastric BypassPublication . Andrade, L; Chiote, I; Santos-Cruz, A; Brito-Costa, A; Mendes, L; Silva-Nunes, J; Pereira, JIntroduction: One anastomosis gastric bypass (OAGB) is an effective bariatric procedure. However, nutritional deficiencies or dumping syndrome (DS) may occur. The aim of this study was to assess adherence to nutritional recommendations and development of DS in a 3-year OAGB patient follow-up. Methods: For 150 OAGB patients, in our center, data were collected through the electronic platform and by an individual telephone interview. The inclusion criterion is OAGB as a primary bariatric procedure, no revisional surgery, or no pregnancy. The adequacy of daily protein intake cutoff was defined as 60 g. Adherence to micronutrient supplementation protocol was considered if a minimum of 5 takes/week were reported. To evaluate the occurrence of DS, the Sigstad score questionnaire was used. For statistical analysis, a significance level less than 5% (p < 0.05) was considered. Results: A total of 150 patients (80% females), BMI 44.3 ± 21.3 kg/m2, were subjected to the OAGB procedure. Of those, 128 fulfilled the study inclusion criteria. After 3 years, the mean %EBMIL was 78.4 ± 14.4. During the 3-year follow-up, the average protein intake was 60 g/day, and 48% reported an adequate daily protein intake. Adherence to the micronutrient supplementation protocol was reported by 70%. According to the Sigstad score questionnaire, DS was present in 24% of patients. Conclusion: A significant part of OAGB patients does not comply with the nutrition prescription assessed, emphasizing the need to improve team/patient communication strategies. Long-term studies are needed to characterize and assess the health impact of protein, vitamin, and mineral malnutrition in patients undergoing OAGB.
- Eating Habits During Pregnancy of Women Giving Birth Very Prematurely: An Exploratory AnalysisPublication . Teixeira, B; Cardoso, M; Dias, CC; Pereira-da-Silva, L; E Silva, DIntroduction: Preterm birth is increasing worldwide, representing a major cause of death and long-term loss of human potential among survivors. Some morbidities during pregnancy are well-known risk factors for preterm labor, but it is not yet known whether deviations from adequate dietary patterns are associated with preterm delivery. Diet may be an important modulator of chronic inflammation, and pro-inflammatory diets during pregnancy were reported to be associated with preterm birth. The aim of this study was to assess the food consumption during pregnancy of Portuguese women giving birth very prematurely and the association between the food consumption and the major maternal morbidities during pregnancy related with preterm delivery. Material and methods: A single-center cross-sectional observational study including consecutive Portuguese women giving birth before 33 weeks of gestation was conducted. Recall of eating habits during pregnancy was obtained within the first week after delivery, using a semi quantitative food frequency questionnaire validated for Portuguese pregnant women. Results: Sixty women with a median age of 36.0 years were included. Of these, 35% were obese or overweight at the beginning of pregnancy, 41.7% and 25.0% gained excessive or insufficient weight during pregnancy, respectively. Pregnancy-induced hypertension was present in 21.7% of cases, gestational diabetes in 18.3%, chronic hypertension in 6.7%, and type 2 diabetes mellitus in 5.0%. Pregnancy-induced hypertension was significantly associated with increased daily consumption of pastry products (31.2 vs 10.0 g, p = 0.022), fast food (39.6 vs 29.7 g, p = 0.028), bread (90.0 vs 50.0 g, p = 0.005), pasta, rice and potatoes (225.7 vs 154.3 g, p = 0.012). In a multivariate analysis, only bread consumption maintained a significant, albeit weak, association (OR = 1.021; 1.003 - 1.038, p = 0.022). Conclusion: Pregnancy-induced hypertension was associated with increased consumption of pastry products, fast food, bread, pasta, rice, and potatoes, although only bread consumption had a weak but statistically significant association with pregnancy-induced hypertension in a multivariate analysis.
- Preoperative Metabolic Status Is Associated with Different Evolution of Resting Energy Expenditure after Liver Transplant in AdultsPublication . Brito-Costa, A; Pereira-da-Silva, L; Papoila, AL; Alves, M; Mateus, E; Nolasco, F; Barroso, EIntroduction: The resting energy expenditure (REE) evolution after liver transplantation is not fully understood. Objective: To assess longitudinally the REE evolution in adults undergoing liver transplantation, in association with other nutritional measurements that characterize the metabolic profile. Methods: A single-center cohort of consecutive end-stage liver disease patients with indication for liver transplantation was recruited. REE, subjective global assessment (SGA), handgrip strength and body composition measurements were assessed before transplantation (T0) and at median nine (T1) and 36 (T2) days after transplantation. Mixed effects regression models were used for analysis. Results: Fifty-six patients with a mean age of 53.7 (8.5) years were included; 87.5% were males. In T0, 41% of patients were normometabolic, 37.5% were hypometabolic and 21.4% were hypermetabolic. After transplantation, the mean REE decreased progressively in patients initially hypermetabolic and the opposite occurred in those initially hypometabolic. The REE evolution was positively associated with body weight (β = 9.6, p < 0.001) and energy intake (β= 13.6, p = 0.005) in the whole sample; it was positively associated with body weight (β= 7.1, p = 0.018) and percentage of energy intake from lipids (β= 18.9, p = 0.003) in initially hypometabolic patients, and positively associated with body weight (β= 14.1, p < 0.001) and negatively associated with SGA-undernourishment (β = -171, p = 0.007) in initially normometabolic patients. Conclusion: Different REE evolutions after liver transplantation are associated with the preoperative metabolic status. In patients initially hypometabolic, the REE evolution is positively associated with body weight and percentage of energy intake from lipids, and in those initially normometabolic, it is positively associated with body weight and negatively associated with SGA-undernourishment.
- Influence of Human Milk on Very Preterms' Gut Microbiota and Alkaline Phosphatase ActivityPublication . Morais, J; Marques, C; Faria, A; Teixeira, D; Barreiros-Mota, I; Durão, C; Araújo, J; Ismael, S; Brito, S; Cardoso, M; Macedo, I; Pereira, E; Tomé, T; Calhau, CThe FEEDMI Study (NCT03663556) evaluated the influence of infant feeding (mother's own milk (MOM), donor human milk (DHM) and formula) on the fecal microbiota composition and alkaline phosphatase (ALP) activity in extremely and very preterm infants (≤32 gestational weeks). In this observational study, preterm infants were recruited within the first 24 h after birth. Meconium and fecal samples were collected at four time points (between the 2nd and the 26th postnatal days. Fecal microbiota was analyzed by RT-PCR and by 16S rRNA sequencing. Fecal ALP activity, a proposed specific biomarker of necrotizing enterocolitis (NEC), was evaluated by spectrophotometry at the 26th postnatal day. A total of 389 fecal samples were analyzed from 117 very preterm neonates. Human milk was positively associated with beneficial bacteria, such as Bifidobacterium, Bacteroides ovatus, and Akkermancia muciniphila, as well as bacterial richness. Neonates fed with human milk during the first week of life had increased Bifidobacterium content and fecal ALP activity on the 26th postnatal day. These findings point out the importance of MOM and DHM in the establishment of fecal microbiota on neonates prematurely delivered. Moreover, these results suggest an ALP pathway by which human milk may protect against NEC.
- FEEDMI: A Study Protocol to Determine the Influence of Infant-Feeding on Very-Preterm-Infant's Gut MicrobiotaPublication . Morais, J; Marques, C; Teixeira, D; Durão, C; Faria, A; Brito, S; Cardoso, M; Macedo, I; Tomé, T; Calhau, CBackground: Preterm infants are especially vulnerable to gut microbiota disruption and dysbiosis since their early gut microbiota is less abundant and diverse. Several factors may influence infants' gut microbiota, such as the mother's diet, mode of delivery, antibiotic exposure, and type of feeding. Objectives: This study aims to examine the factors associated with very-preterm neonate's intestinal microbiota, namely: (1) type of infant-feeding (breast milk, donor human milk with or without bovine protein-based fortifier, and preterm formula); (2) maternal diet; and (3) mode of delivery. Methods: This is an observational study conducted in a cohort of very preterm infants hospitalized in the neonatal intensive care unit of Maternidade Dr. Alfredo da Costa. After delivery, the mothers are asked to collect their own fecal samples and are invited to complete a semiquantitative food frequency questionnaire. The maternal diet will be classified in accordance to the Mediterranean Diet adherence score. Stool samples have been collected from very premature infants every 7 days for 21 days. DNA has been extracted from the fecal samples, and different bacterial genus and species will be quantified by real-time polymerase chain reaction. Results and conclusions: It is hypothesized that significant differences in the microbiota composition and clinical outcomes of very preterm infants will be observed depending on the type of infant feeding. In addition, this study will clarify how pasteurized donor's milk influences the intestinal microbiota colonization of preterm infants. This is a pioneer study developed in collaboration with the country's Human Milk Bank. We also expect to find microbiota alterations in infants according to the mode of delivery and to maternal diet. This study will contribute to increase the evidence on the effects of breast or donor human milk and its fortification with a bovine protein-based fortifier on infant microbiota.
- Customized Human Milk Fortification Based on Measured Human Milk Composition to Improve the Quality of Growth in Very Preterm Infants: A Mixed-Cohort Study ProtocolPublication . Cardoso, M; Virella, D; Macedo, I; Silva, D; Pereira-da-Silva, LAdequate nutrition of very preterm infants comprises fortification of human milk (HM), which helps to improve their nutrition and health. Standard HM fortification involves a fixed dose of a multi-nutrient HM fortifier, regardless of the composition of HM. This fortification method requires regular measurements of HM composition and has been suggested to be a more accurate fortification method. This observational study protocol is designed to assess whether the target HM fortification method (contemporary cohort) improves the energy and macronutrient intakes and the quality of growth of very preterm infants, compared with the previously used standard HM fortification (historical cohorts). In the contemporary cohort, a HM multi-nutrient fortifier and modular supplements of protein and fat are used for HM fortification, and the enteral nutrition recommendations of the European Society for Paediatric Gastroenterology Hepatology and Nutrition for preterm infants will be considered. For both cohorts, the composition of HM is assessed using the Miris Human Milk analyzer (Uppsala, Sweden). The quality of growth will be assessed by in-hospital weight, length, and head circumference growth velocities and a single measurement of adiposity (fat mass percentage and fat mass index) performed just after discharge, using the air displacement plethysmography method (Pea Pod, Cosmed, Italy). ClinicalTrials.gov registration number: NCT04400396.
- The Fortification Method Relying on Assumed Human Milk Composition Overestimates the Actual Energy and Macronutrient Intakes in Very Preterm InfantsPublication . Macedo, I; Pereira-da-Silva, L; Cardoso, MBACKGROUND: To achieve recommended nutrient intakes in preterm infants, the target fortification method of human milk (HM) was proposed as an alternative to standard fortification method. We aimed to compare assumed energy and macronutrient intakes based on standard fortified HM with actual intakes relying on measured composition of human milk (HM), in a cohort of HM-fed very preterm infants. METHODS: This study is a secondary retrospective analysis, in which assumed energy and macronutrient contents of daily pools of own mother's milk (OMM) from 33 mothers and donated HM (DHM) delivered to infants were compared with the measured values using a mid-infrared HM analyzer. A fortification method consisting of modular protein and/or fat supplements added to standard fortified HM was used to provide the minimum recommended daily intakes of energy 110 Kcal/kg and protein up to 4.0 g/kg. Assumed nutrient intakes were compared with actual nutrient intakes from full enteral feeding to 35 weeks plus 6 days postmenstrual age, using the Wilcoxon matched-pairs signed ranks test. RESULTS: The composition of 1181 samples of daily pools of HM were measured. For 90.2% of study days, infants were exclusively fed OMM and in remaining days fed OMM plus DHM. Comparing with reported preterm OMM composition, measured protein concentration was significantly lower, and energy and other macronutrient concentrations were lower only from the second to third postnatal week. Using fortified HM, the actual median daily intakes of energy, protein, and fat were significantly lower (113.3 vs. 120.7 Kcal/kg, 4.45 vs. 4.73 g/kg, and 4.96 vs. 5.35 g/kg, respectively) and the actual protein-to-energy ratio (PER) significantly higher than what was assumed (4.2 vs. 4.0), without differences in carbohydrate intake. CONCLUSIONS: When fortifying the HM, we used conservative target intakes trying not to exceed the osmolarity recommended for infant feeds. Actual energy, protein and fat intakes in OMM were significantly lower than assumed. This resulted in inadequate intake using our fortification method, that did not compensate the suboptimal measured energy and macronutrient contents of OMM delivered. Further studies comparing assumed with the gold standard target fortification are needed to determine safe upper limits of assumed fortification.
- Chronic Hypertension with Gestational Diabetes Mellitus: What About Complications?Publication . Campos, A; Massa, AC; Rangel, R; Cardoso, M; Borges, AThe aim of this study was to evaluate the impact of chronic hypertension and gestational diabetes on pregnancy outcomes. We conducted a historical cohort study of 334 women undergoing singleton births in a Portuguese tertiary care center in Lisbon during 2012. Women were categorized into gestational diabetes mellitus with or without chronic hypertension. Pregnancy outcomes were compared using nonparametric tests. Multivariable analysis was used to control for potential confounders. The rate of preeclampsia in women with both chronic hypertension and gestational diabetes was 26.8% versus 3.8% in women with only gestational diabetes (p<0.05). Preterm birth was significantly more frequent in women with diabetes and chronic hypertension, 22.9% versus 9.7%, compared with women who only had gestational diabetes (p<0.05). The rate of newborns small for gestational age in women with the two conditions was 19.1% versus 7.6% in women with only gestational diabetes (p<0.05), but the rate of large for gestational age newborns in women of chronic hypertension and gestational diabetes was 9.6% versus 3.8% in gestational diabetes (p<0.05). The impact of having both chronic hypertension and gestational diabetes in pregnancy leads to poor pregnancy and perinatal outcomes, represented by more maternal, obstetrical and neonatal morbidity.
- The Effect of Long-Chain Polyunsaturated Fatty Acids Intake During Pregnancy on Adiposity of Healthy Full-Term Offspring at BirthPublication . Pereira-da-Silva, L; Cabo, C; Moreira, AC; Papoila, AL; Virella, D; Neves, R; Bridges, KM; Cordeiro-Ferreira, GOBJECTIVE: The adjusted effect of long-chain polyunsaturated fatty acid (LCPUFA) intake during pregnancy on adiposity at birth of healthy full-term appropriate-for-gestational age neonates was evaluated. STUDY DESIGN: In a cross-sectional convenience sample of 100 mother and infant dyads, LCPUFA intake during pregnancy was assessed by food frequency questionnaire with nutrient intake calculated using Food Processor Plus. Linear regression models for neonatal body composition measurements, assessed by air displacement plethysmography and anthropometry, were adjusted for maternal LCPUFA intakes, energy and macronutrient intakes, prepregnancy body mass index and gestational weight gain. RESULT: Positive associations between maternal docosahexaenoic acid intake and ponderal index in male offspring (β=0.165; 95% confidence interval (CI): 0.031-0.299; P=0.017), and between n-6:n-3 LCPUFA ratio intake and fat mass (β=0.021; 95% CI: 0.002-0.041; P=0.034) and percentage of fat mass (β=0.636; 95% CI: 0.125-1.147; P=0.016) in female offspring were found. CONCLUSION: Using a reliable validated method to assess body composition, adjusted positive associations between maternal docosahexaenoic acid intake and birth size in male offspring and between n-6:n-3 LCPUFA ratio intake and adiposity in female offspring were found, suggesting that maternal LCPUFA intake strongly influences fetal body composition.