ABSTRACT
AIM: To examine how reduced iron content and added bovine lactoferrin in infant formula affect the antibody response following routine immunisation. METHODS: In this randomised controlled trial, 180 Swedish formula-fed infants received, from 6 weeks to 6 months of age, a 2 mg/L iron formula with (n = 72) or without (n = 72) bovine lactoferrin, or a control formula with 8 mg/L iron and no lactoferrin (n = 36). Another 72 infants were recruited as a breastfed reference. Serum immunoglobulin G (IgG) levels against Haemophilus influenzae type b (Hib), diphtheria and tetanus were assessed at four, six and 12 months of age. RESULTS: With an equal gender distribution, 180 + 72 term infants were included with a mean age of 7.0 ± 0.7 weeks. At 12 months, infants fed low iron formula showed a significantly higher geometric mean Hib IgG (1.40 µg/mL [1.07-1.83]) compared to the control formula infants (0.67 µg/mL [0.42-1.07]). For all three vaccines, breastfed infants had significantly lower IgG levels at six and 12 months of age. CONCLUSION: Except for higher Hib IgG levels at 12 months in infants fed low iron formula, the interventions did not affect vaccine IgG response. Unexpectedly, breastfed infants had significantly lower vaccine IgG levels compared to formula-fed infants.
ABSTRACT
BACKGROUND: Formula-fed infants are at increased risk of infections. Due to the cross-talk between the mucosal systems of the gastrointestinal and respiratory tracts, adding synbiotics (prebiotics and probiotics) to infant formula may prevent infections even at distant sites. Infants that were born full term and weaned from breast milk were randomized to prebiotic formula (fructo- and galactooligosaccharides) or the same prebiotic formula with Lactobacillus paracasei ssp. paracasei F19 (synbiotics) from 1 to 6 months of age. The objective was to examine the synbiotic effects on gut microbiota development. RESULTS: Fecal samples collected at ages 1, 4, 6, and 12 months were analyzed using 16S rRNA gene sequencing and a combination of untargeted gas chromatography-mass spectrometry/liquid chromatography-mass spectrometry. These analyses revealed that the synbiotic group had a lower abundance of Klebsiella, a higher abundance of Bifidobacterium breve compared to the prebiotic group, and increases in the anti-microbial metabolite d-3-phenyllactic acid. We also analyzed the fecal metagenome and antibiotic resistome in the 11 infants that had been diagnosed with lower respiratory tract infection (cases) and 11 matched controls using deep metagenomic sequencing. Cases with lower respiratory tract infection had a higher abundance of Klebsiella species and antimicrobial resistance genes related to Klebsiella pneumoniae, compared to controls. The results obtained using 16S rRNA gene amplicon and metagenomic sequencing were confirmed in silico by successful recovery of the metagenome-assembled genomes of the bacteria of interest. CONCLUSIONS: This study demonstrates the additional benefit of feeding specific synbiotics to formula-fed infants over prebiotics only. Synbiotic feeding led to the underrepresentation of Klebsiella, enrichment of bifidobacteria, and increases in microbial degradation metabolites implicated in immune signaling and in the gut-lung and gut-skin axes. Our findings support future clinical evaluation of synbiotic formula in the prevention of infections and associated antibiotic treatment as a primary outcome when breastfeeding is not feasible. TRIAL REGISTRATION: ClinicalTrials.gov NCT01625273 . Retrospectively registered on 21 June 2012.
Subject(s)
Probiotics , Synbiotics , Female , Humans , Infant , RNA, Ribosomal, 16S/genetics , Prebiotics , LungABSTRACT
OBJECTIVES: Compared to formula-fed infants, breastfed infants have a lower risk of infections. Two possible reasons for this are the presence of the anti-infective and anti-inflammatory protein lactoferrin and the lower level of iron in breast milk. We explored how adding bovine lactoferrin and reducing the iron concentration in infant formula affect immunology and risk of infections in healthy infants. METHODS: In a double-blind controlled trial, term formula-fed (FF) Swedish infants (nâ=â180) were randomized to receive, from 6âweeks to 6âmonths of age, a low-iron formula (2âmg/L) with added bovine lactoferrin (1.0âg/L) (Lf+; nâ=â72); low-iron formula with no added lactoferrin (Lf-; nâ=â72); and standard formula at 8âmg/L iron and no added lactoferrin (control formula [CF]; nâ=â36). Cytokines, infections, and infection related treatments were assessed until 12âmonths of age. RESULTS: No adverse effects were observed. There were no apparent effects on transforming growth factor beta (TGF-ß)1, TGF-ß2, tumor necrosis factor alfa (TNF-α) or interleukin2 (IL-2) at 4, 6, or 12âmonths, except of higher TGF-ß2 at 6âmonths in the CF group in comparison to the low iron groups combined (Pâ=â0.033). No significant differences in otitis, respiratory infections, gastroenteritis, or other monitored infections and treatments were detected for any of the study feeding groups during the first 6âmonths and only a few and diverging effects were observed between 6 and 12âmonths. CONCLUSIONS: Adding bovine lactoferrin and reducing iron from 8 to 2âmg/L in infant formula was safe. No clinically relevant effects on cytokines or infection related morbidity were observed in this well-nourished and healthy population.
Subject(s)
Infant Formula , Lactoferrin , Breast Feeding , Cytokines/metabolism , Female , Humans , Infant , Iron/metabolism , Lactoferrin/metabolism , Lactoferrin/pharmacology , Lactoferrin/therapeutic use , Milk, Human/metabolism , Transforming Growth Factor beta2/metabolismABSTRACT
The inorganic anions nitrate and nitrite are oxidation products from endogenous nitric oxide (NO) generation and constituents in our diet. A nitrate-nitrite-NO pathway exists in which nitrate can be serially reduced to bioactive NO. The first step of this pathway occurs in the oral cavity where oral bacteria convert salivary nitrate to nitrite, whereafter nitrite is reduced to NO systemically by several enzymatic and non-enzymatic pathways. Data are scarce regarding salivary levels and oral conversion capacity of these anions in infants. We measured salivary nitrate and nitrate in infants at 4 and 12 months of age and related values to age, sex, dietary pattern and oral microbiome. Saliva was collected from a total of 188 infants at 4 and 12 months of age. Salivary nitrate, nitrite and nitrite/nitrate ratio as a measure of oral nitrate-reducing capacity were analyzed by HPLC and related to age, sex, type of diet (breast milk or formula) and oral microbiome. There was no difference in salivary nitrate, nitrite or nitrite/nitrate ratio between boys and girls at any age. At 4 months levels of these parameters were lower than what has been described in adults but they had all increased significantly at 12 months of age. At 4 months of age salivary nitrite/nitrate ratio was lower in breast-fed compared to formula-fed infants, but these differences disappeared at 12 months. Several bacterial species were associated with oral nitrate reducing capacity including Prevotella, Veillonella, Alloprevotella and Leptotrichia. We conclude that in infants there is an increase in salivary nitrate and nitrite as well as in oral nitrate-reductase capacity during the first year of life. Differences observed at 4 months of age between breast-fed and formula-fed infants disappear at one year of age.
Subject(s)
Diet , Nitrates/analysis , Nitrites/analysis , Saliva/chemistry , Age Factors , Humans , Infant , Nitrates/administration & dosage , Nitrites/administration & dosage , Sex FactorsABSTRACT
BACKGROUND: What we eat as infants and children carries long-term consequences. Apart from breastfeeding, the composition of the complementary diet, i.e. the foods given to the infant during the transition from breast milk/infant formula to regular family foods affects the child's future health. A high intake of protein, a low intake of fruits, vegetables and fish and an unfavorable distribution between polyunsaturated and saturated fats are considered to be associate with health risks, e.g. obesity, type 2 diabetes and dyslipidemia later in life. METHODS: In a randomized, controlled study from 6 to 18 months of age we will compare the currently recommended, Swedish complementary diet to one based on Nordic foods, i.e. an increased intake of fruits, berries, vegetables, tubers, whole-grain and game, and a lower intake of sweets, dairy, meat and poultry, with lower protein content (30% decrease), a higher intake of vegetable fats and fish and a systematic introduction of fruits and greens. The main outcomes are body composition (fat and fat-free mass measured with deuterium), metabolic and inflammatory biomarkers (associated with the amount of body fat) in blood and urine, gut microbiota (thought to be the link between early diet, metabolism and diseases such as obesity and insulin resistance) and blood pressure. We will also measure the participants' energy and nutrient intake, eating behavior and temperament through validated questionnaires, acceptance of new and unfamiliar foods through video-taped test meals and assessment of cognitive development, which we believe can be influenced through an increased intake of fish and milk fats, notably milk fat globule membranes (MFGM). DISCUSSION: If the results are what we expect, i.e. improved body composition and a less obesogenic, diabetogenic and inflammatory metabolism and gut microbiota composition, a more sustainable nutrient intake for future health and an increased acceptance of healthy foods, they will have a profound impact on the dietary recommendations to infants in Sweden and elsewhere, their eating habits later in life and subsequently their long-term health. TRIAL REGISTRATION: NCT02634749 . Registration date 18 December 2015.
Subject(s)
Diet, Protein-Restricted , Infant Food/statistics & numerical data , Infant Nutritional Physiological Phenomena , Female , Follow-Up Studies , Humans , Infant , Infant Health , Male , SwedenABSTRACT
BACKGROUND: Supplementation of formula with bovine milk fat globule membranes has been shown to narrow the gap in immunological and cognitive development between breast-fed and formula-fed infants. METHOD: In a double-blinded randomized controlled trial 160 formula-fed infants received an experimental formula (EF), supplemented with bovine milk fat globule membranes, or standard formula until 6 months of age. A breast-fed reference group was recruited. Lipidomic analyses were performed on plasma and erythrocyte membranes at 6 months and on serum at 4 and 12 months of age. RESULTS: At 6 months of age, we observed a significant separation in the plasma lipidome between the two formula groups, mostly due to differences in concentrations of sphingomyelins (SM), phosphatidylcholines (PC), and ceramides, and in the erythrocyte membrane lipidome, mostly due to SMs, PEs and PCs. Already at 4 months, a separation in the serum lipidome was evident where SMs and PCs contributed. The separation was not detected at 12 months. CONCLUSIONS: The effect of MFGM supplementation on the lipidome is likely part of the mechanisms behind the positive cognitive and immunological effects of feeding the EF previously reported in the same study population.
Subject(s)
Erythrocyte Membrane/metabolism , Glycolipids/administration & dosage , Glycoproteins/administration & dosage , Infant Formula , Lipids/blood , Animals , Breast Feeding , Cattle , Double-Blind Method , Female , Humans , Infant , Lipid Droplets , Male , Reference StandardsABSTRACT
The first Committee on Nutrition (CoN) was founded in 1974. Two years later nutrition (N) was added to the society's name, which then became ESPGAN. The Committee systematised compositional and quality criteria for breast milk substitutes and food for special medical purposes, the first of many examples on how recommendations and comments published by the Committees on Nutrition (CsoN) were adopted by the European Economic Community, later the European Union and also influenced the World Health Organization/Food and Agriculture Organization of the United Nations Codex standards. A second CoN focusing on preterm infants was established in 1979 and its recommendations on nutrition of these infants were widely implemented. The third and standing CoN, established 1986, started to organise high-quality symposia at the annual meetings appreciating the need to enhance the expertise in nutritional research. From 1991 the CoN has organised Summer Schools in paediatric nutrition for young colleagues further emphasising its educational interest and more recently an annual, more specialised Nutrition Masterclass. Successively the interest of the CoN has expanded to other areas, such as highlighting dilemmas and uncertainties in the field of nutrition including the design, choice of outcomes and statistical analysis of trials in infant nutrition. The work of the CsoN have had great impact on paediatric nutrition and the committee will continue its important role by writing commentaries and systematic reviews and revising guidelines when required to inform and stimulate discussion among colleagues as well as stimulate training in paediatric nutrition by organising workshops and scientific meetings, training courses, and other approaches, and by interaction with other expert groups.
Subject(s)
Child Nutrition Sciences/history , Gastroenterology/history , Nutrition Disorders/history , Pediatrics/history , Societies, Medical/history , Anniversaries and Special Events , Child , Child Nutrition Sciences/organization & administration , Child Nutritional Physiological Phenomena , Europe , Gastroenterology/organization & administration , History, 20th Century , History, 21st Century , Humans , Nutritional Requirements , Pediatrics/organization & administrationABSTRACT
OBJECTIVES: The aim of the study was to evaluate vitamin D status and effects of vitamin D intervention on bone mineral density (BMD) and content (BMC) in children with fair and dark skin in Sweden during winter. METHODS: In a 2-center prospective double-blinded randomized intervention study 5- to 7-year-old children (nâ=â206) with fair and dark skin in Sweden (55°N-63°N) received daily vitamin D supplements of 25âµg, 10âµg, or placebo (2âµg) during 3 winter months. We measured BMD and BMC for total body (TB), total body less head (TBLH), femoral neck (FN), and spine at baseline and 4 months later. Intake of vitamin D and calcium, serum 25-hydroxy vitamin D (S-25[OH]D), and related parameters were analyzed. RESULTS: Despite lower S-25(OH)D in dark than fair-skinned children, BMD of TB (Pâ=â0.012) and TBLH (Pâ=â0.002) and BMC of TBLH (Pâ=â0.04) were higher at baseline and follow-up in those with dark skin. Delta (Δ) BMD and BMC of TB and TBLH did not differ between intervention and placebo groups, but FN-BMC increased more among dark-skinned children in the 25âµg (Pâ=â0.038) and 10âµg (Pâ=â0.027) groups compared to placebo. We found no associations between Δ S-25(OH)D, P-parathyroid hormone, P-alkaline phosphatase, and Δ BMD and BMC, respectively. CONCLUSIONS: BMD and BMC remained higher in dark- than fair-skinned children despite lower vitamin D status. Even though no difference in general was found in BMD or BMC after vitamin D intervention, the increase in FN-BMC in dark-skinned children may suggest an influence on bone in those with initially insufficient vitamin D status.
Subject(s)
Bone Density/drug effects , Skin Pigmentation/physiology , Vitamin D Deficiency/prevention & control , Vitamin D/therapeutic use , Vitamins/therapeutic use , Absorptiometry, Photon , Child , Child, Preschool , Double-Blind Method , Female , Follow-Up Studies , Humans , Male , Prospective Studies , Seasons , Sweden , Vitamin D/blood , Vitamin D Deficiency/blood , Vitamins/bloodABSTRACT
BACKGROUND: Growth is an essential outcome measure for evaluating the safety of infant formulas (IF). We investigated the effects of consumption of IF supplemented with prebiotics (fructooligosaccharides, FOS, and galactooligosaccharides, GOS) compared with synbiotics (FOS/GOS and Lactobacillus paracasei ssp. paracasei strain F19) on the growth of healthy infants. METHODS: 182 full-term infants who were weaned completely from breast milk to IF at 28 d of age were randomly assigned to receive prebiotic- or synbiotic-supplemented, otherwise identical, IF until 6 mo of age (intervention period). RESULTS: A total of 146 (80%) infants were included in the intention-to-treat analysis at 6 mo. Anthropometric parameters were similar in the two groups during the intervention and follow-up period until 12 mo of age. Compared with the prebiotic group, a significant reduction in the cumulative incidence of lower respiratory tract infections was found in the synbiotic group; however, the confidence interval of the estimate was wide, resulting in uncertainty. CONCLUSION: The lack of a significant difference between the formula-fed groups in growth, or the occurrence of serious adverse events, supports the safety of using IF supplemented with synbiotics. Further studies are needed to evaluate the effects of such formula on lower-respiratory tract infections.
Subject(s)
Bottle Feeding/methods , Child Development , Infant Formula , Lacticaseibacillus paracasei/growth & development , Oligosaccharides/administration & dosage , Prebiotics/administration & dosage , Synbiotics/administration & dosage , Age Factors , Bottle Feeding/adverse effects , Double-Blind Method , Female , Humans , Infant , Infant, Newborn , Intention to Treat Analysis , Male , Oligosaccharides/adverse effects , Poland , Prebiotics/adverse effects , Synbiotics/adverse effects , Time Factors , Treatment OutcomeABSTRACT
The milk fat globule membrane (MFGM) in breast milk contains many bioactive components. Infant formulas traditionally have been devoid of the MFGM fraction, but dairy technology now has made the addition of bovine MFGM technically feasible. We identified 6 double-blinded randomized controlled trials exploring the effects of MFGM supplementation on the diets of infants or children. Results suggest that supplementation is safe and indicate positive effects on both neurodevelopment and defense against infections. MFGM supplementation of infant formula may narrow the gap in cognitive performance and infection rates between breastfed and formula-fed infants. Because of the small number of studies and the heterogeneity of interventions, more high-quality double-blinded randomized controlled trials are needed, with well characterized and clearly defined MFGM fractions, before firm conclusions on the effects of MFGM supplementation on the health and development of infants can be drawn.
Subject(s)
Anti-Infective Agents/pharmacology , Brain/drug effects , Cognition/drug effects , Dietary Supplements , Glycolipids/pharmacology , Glycoproteins/pharmacology , Immune System/drug effects , Infant Nutritional Physiological Phenomena/drug effects , Anti-Infective Agents/immunology , Brain/growth & development , Child, Preschool , Cognition/physiology , Glycolipids/immunology , Glycoproteins/immunology , Humans , Infant , Infant Formula , Infant Nutritional Physiological Phenomena/immunology , Infant, Newborn , Lipid Droplets , Milk, Human/physiologyABSTRACT
Different metabolic pathways of supplemental and fortification Fe, or inhibition of Zn absorption by Fe, may explain adverse effects of supplemental Fe in Fe-sufficient infants. We determined whether the mode of oral Fe administration or the amount habitually consumed affects Fe absorption and systemic Fe utilisation in infants, and assessed the effects of these interventions on Zn absorption, Fe and Zn status, and growth. Fe-sufficient 6-month-old infants (n 72) were randomly assigned to receive 6·6 mg Fe/d from a high-Fe formula, 1·3 mg Fe/d from a low-Fe formula or 6·6 mg Fe/d from Fe drops and a formula with no added Fe for 45 d. Fractional Fe absorption, Fe utilisation and fractional Zn absorption were measured with oral (57Fe and 67Zn) and intravenous (58Fe and 70Zn) isotopes. Fe and Zn status, infection and growth were measured. At 45 d, Hb was 6·3 g/l higher in the high-Fe formula group compared with the Fe drops group, whereas serum ferritin was 34 and 35 % higher, respectively, and serum transferrin 0·1 g/l lower in the high-Fe formula and Fe drops groups compared with the low-Fe formula group (all P<0·05). No intervention effects were observed on Fe absorption, Fe utilisation, Zn absorption, other Fe status indices, plasma Zn or growth. We concluded that neither supplemental or fortification Fe nor the amount of Fe habitually consumed altered Fe absorption, Fe utilisation, Zn absorption, Zn status or growth in Fe-sufficient infants. Consumption of low-Fe formula as the only source of Fe was insufficient to maintain Fe stores.
Subject(s)
Iron/administration & dosage , Iron/pharmacokinetics , Zinc/pharmacokinetics , Administration, Oral , Double-Blind Method , Drug Interactions , Humans , Infant , Infant Nutritional Physiological PhenomenaABSTRACT
Breast milk is a dynamic fluid with compositional changes occurring throughout the period of lactation. Some of these changes in nutrient concentrations reflect the successively slowing growth rate and developmental changes in metabolic requirements that infants undergo during the first year of life. Infant formula, in contrast, has a static composition, intended to meet the nutritional requirements of infants from birth to 6 or 12 months of age. To better fit the metabolic needs of infants and to avoid nutrient limitations or excesses, we suggest that infant formulas should change in composition with the age of the infant, that is, different formulas are created/used for different ages during the first year of life. We propose that specific formulas for 0 to 3 months (stage 1), 3 to 6 months (stage 2), and 6 to 12 months (stage 3) of age may be nutritionally and physiologically advantageous to infants. Although this initially may impose some difficult practical/conceptual issues, we believe that this staging concept would improve nutrition of formula-fed infants and, ultimately, improve outcomes and make their performance more similar to that of breast-fed infants.
Subject(s)
Bottle Feeding/methods , Child Development/physiology , Infant Formula/chemistry , Infant Formula/methods , Infant Nutritional Physiological Phenomena , Milk, Human/chemistry , Nutritional Requirements/physiology , Breast Feeding , Energy Intake , Humans , Infant , Infant Formula/metabolism , Infant, Newborn , Lipid Metabolism , Milk Proteins/metabolism , Milk, Human/microbiology , Milk, Human/physiology , Minerals/metabolism , Probiotics , Trace Elements/metabolismABSTRACT
OBJECTIVES: To evaluate if dietary vitamin D intake is adequate for sufficient vitamin D status during early winter in children living in Sweden, irrespective of latitude or skin color. METHODS: As part of a prospective, comparative, 2-center intervention study in northern (63°N) and southern (55°N) Sweden, dietary intake, serum 25-hydroxyvitamin D (S-25(OH) D), associated laboratory variables, and sociodemographic data were studied in 5 to 7-year-old children with fair and dark skin in November and December. RESULTS: Two hundred six children with fair/dark skin were included, 44/41 and 64/57 children in northern and southern Sweden, respectively. Dietary vitamin D intake was higher in northern than southern Sweden (Pâ=â0.001), irrespective of skin color, partly due to higher consumption of fortified foods, but only met 50-70% of national recommendations (10 µg/day). S-25(OH) D was higher in northern than southern Sweden, in children with fair (67 vs 59 nmol/L; Pâ<â0.05) and dark skin (56 vs 42 nmol/L; Pâ<â0.001). S-25(OH) D was lower in dark- than fair-skinned children at both sites (Pâ<â0.01), and below 50 nmol/L in 40 and 75% of dark-skinned children in northern and southern Sweden, respectively. CONCLUSIONS: Insufficient vitamin D status was common during early winter in children living in Sweden, particularly in those with dark skin. Although, higher dietary vitamin D intake in northern than southern Sweden attenuated the effects of latitude, a northern country of living combined with darker skin and vitamin D intake below recommendations are important risk factors for vitamin D insufficiency.
Subject(s)
Child Nutritional Physiological Phenomena , Diet, Healthy , Nutritional Status , Patient Compliance , Skin Pigmentation , Vitamin D Deficiency/prevention & control , Vitamin D/therapeutic use , 25-Hydroxyvitamin D 2/blood , Calcifediol/blood , Child , Child, Preschool , Diet/adverse effects , Dietary Supplements , Humans , Longitudinal Studies , Prospective Studies , Risk Factors , Seasons , Skin/metabolism , Skin/radiation effects , Socioeconomic Factors , Sunlight , Sweden/epidemiology , Vitamin D/metabolism , Vitamin D Deficiency/blood , Vitamin D Deficiency/epidemiology , Vitamin D Deficiency/etiologyABSTRACT
Partially hydrolyzed formulas (pHFs) are increasingly used worldwide, both in the prevention of atopic disease in at-risk infants and in the therapeutic management of infants with functional gastrointestinal manifestations. Because prevention is always preferable to treatment, we reviewed the literature aiming to find an answer for the question whether pHF may be recommended for feeding all infants if breast-feeding is not possible. PubMed and Cochrane databases were searched up to December 2014. In addition, to search for data that remained undetected by the searches, we approached authors of relevant articles and major producers of pHFs asking for unpublished data. Because few data were found, nonrandomized, controlled trials and trials in preterm infants were included as well. Overall, only limited data could be found on the efficacy and safety of pHF in healthy term infants. Available data do not indicate that pHFs are potentially harmful for healthy, term infants. With respect to long-term outcomes, particularly referring to immune, metabolic and hormonal effects, data are, however, nonexistent. From a regulatory point of view, pHFs meet the nutrient requirements to be considered as standard formula for term healthy infants. Cost, which is different from country to country, should be considered in the decision-making process. Based on limited available data, the use of pHF in healthy infants is safe with regard to growth. The lack of data, in particular for metabolic consequences and long-term outcomes, is, however, the basis for our recommendation that health authorities should develop and support long-term follow-up studies. Efficacy and long-term safety data are required before a recommendation of this type of formula for all infants can be made.
Subject(s)
Bottle Feeding/standards , Infant Formula/standards , Infant Nutritional Physiological Phenomena/standards , Nutritional Requirements , Protein Hydrolysates/adverse effects , Bottle Feeding/methods , Humans , Infant , Infant Formula/chemistry , Infant Formula/economics , Infant Nutritional Physiological Phenomena/drug effects , Infant, Newborn , Protein Hydrolysates/standardsABSTRACT
PURPOSE: An aberrant gut microbiome has been suggested to contribute to the worldwide epidemic of obesity. In animal models, the probiotic Lactobacillus paracasei ssp. paracasei F19 (LF19) induced upregulation of genes involved in energy homoeostasis, reduced body fat and altered the serum (S) lipoprotein profile. In our previous report, feeding LF19 to infants during weaning impacted the global plasma metabolome. LF19 lowered palmitoleic acid, a monounsaturated fatty acid associated with hypertriglyceridemia and increased visceral adiposity. Therefore, we assessed if feeding LF19 from 4 to 13 months of age would have long-term effects on body composition, growth and metabolic markers. METHODS: Of 179 children included in our baseline study, 120 entered the follow-up at 8-9 years of age, n = 58 in the probiotic and n = 62 in the placebo group. Body composition was measured using dual energy X-ray absorptiometry. Anthropometrics of the child and accompanying parent(s) were assessed. S-lipids, insulin, glucose and transaminases were determined after overnight fasting. RESULTS: LF19 did not affect body mass index z-score, sagittal abdominal diameter, fat-free mass, fat mass index, truncal fat %, android or gynoid fat % and had no long-term impact on any of the assessed metabolic markers (p > 0.05). CONCLUSION: Feeding LF19 during infancy did not modulate body composition, growth or any of the assessed metabolic markers at school age. The steady increase in probiotic products targeting infants and children calls for long-term follow-up of initiated probiotic intervention studies.
Subject(s)
Body Composition , Probiotics/administration & dosage , Weaning , Absorptiometry, Photon , Biomarkers/blood , Body Mass Index , Body Weight , Child , Demography , Double-Blind Method , Energy Intake , Female , Follow-Up Studies , Humans , Infant , Lactobacillus , Male , Motor ActivityABSTRACT
OBJECTIVES: Observational studies have shown that even in high-income countries formula-fed infants have a higher incidence of acute otitis media (AOM), and gastrointestinal and respiratory tract infections during the first year of life compared with breast-fed infants. We hypothesized that components of the milk fat globule membrane (MFGM) may be responsible for some of these differences and that supplementation with bovine MFGM would decrease the infectious morbidity in formula-fed infants. METHODS: In a double-blind randomized controlled trial, 160 formula-fed infants received experimental formula (EF) supplemented with bovine MFGM (EF) or unsupplemented standard formula (SF) from <2 months until 6 months of age. A breast-fed reference group consisted of 80 infants. Disease symptoms, health care contacts, and medication were recorded by the parents until 12 months of age. Serum immunoglobulin G for 10 pneumococcal serotypes was analyzed at 6 months of age. RESULTS: The cumulative incidence of AOM during the intervention was lower in the EF group than in the SF group (1% vs 9%, P = 0.034), and did not differ from the breast-fed reference group (0%, P = 1.0). The incidence (25% vs 43%, P = 0.021) and longitudinal prevalence (P = 0.012) of antipyretic use were significantly lower in the EF group than in the SF group. Serum immunoglobulin G concentrations against pneumococcal serotypes 1, 5, and 14 were lower in the EF group than in the SF group. CONCLUSIONS: Supplementation of formula with bovine MFGM reduces the risk of AOM, decreases antipyretics use in formula-fed infants, and has immunomodulatory effects on humoral response against pneumococcus vaccine.
Subject(s)
Food, Preserved/analysis , Glycolipids/therapeutic use , Glycoproteins/therapeutic use , Immunomodulation , Infant Formula/chemistry , Infant Nutritional Physiological Phenomena , Otitis Media/prevention & control , Respiratory Tract Infections/prevention & control , Animals , Anti-Infective Agents/therapeutic use , Antipyretics/therapeutic use , Cattle , Child Development , Double-Blind Method , Gastroenteritis/drug therapy , Gastroenteritis/epidemiology , Gastroenteritis/immunology , Gastroenteritis/prevention & control , Humans , Incidence , Infant , Lipid Droplets , Longitudinal Studies , Otitis Media/drug therapy , Otitis Media/epidemiology , Otitis Media/immunology , Pneumococcal Infections/drug therapy , Pneumococcal Infections/epidemiology , Pneumococcal Infections/immunology , Pneumococcal Infections/prevention & control , Prevalence , Respiratory Tract Infections/drug therapy , Respiratory Tract Infections/epidemiology , Respiratory Tract Infections/immunology , Risk , Sweden/epidemiologyABSTRACT
This paper presents an updated and revised summary of the 'core data set' that has been proposed to be recorded and reported in all clinical trials on infant nutrition by the recently formed Consensus Group on Outcome Measures Made in Paediatric Enteral Nutrition Clinical Trials (COMMENT). This core data set was developed based on a previous proposal by the European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) Committee on Nutrition in 2003. It comprises confidential data to identify subjects and facilitate contact for further follow-up, data to characterize the cohort studied and data on withdrawals from the study, and some additional core data for all nutrition studies on preterm infants. We recommend that all studies on nutrition in infancy should collect and report this core data set to facilitate interpretation and comparison of results from clinical studies, and of systematic data evaluation and meta-analyses. Editors of journals publishing such reports are encouraged to require the reporting of the minimum data set described here either in the main body of the publication or as supplementary online material.
Subject(s)
Clinical Trials as Topic , Datasets as Topic/standards , Enteral Nutrition/statistics & numerical data , Infant Nutritional Physiological Phenomena , Nutritional Status , Datasets as Topic/statistics & numerical data , Enteral Nutrition/methods , Female , Humans , Infant , Infant, Newborn , Male , Pediatrics/methodsABSTRACT
We hypothesised that feeding the probiotic Lactobacillus paracasei ssp. paracasei F19 (LF19) (dep. nr LMG P-17806) during weaning would program the metabolic and inflammatory profile and studied its association with previously assessed body composition. In a double-blind, placebo-controlled trial, 179 infants were randomised to daily feeding of cereals with or without LF19 10(8) CFU from 4 to 13 months of age. At age 8-9 years, 120 children were re-assessed. Using high-sensitivity multiplex immunoassay technology and ELISA, we found that overweight/obese children had increased plasma C-peptide, plasminogen activator inhibitor-1, leptin and serum high-sensitivity C-reactive protein (hsCRP) after overnight fasting compared with normal weight children, independently of LF19. After excluding the obese, leptin and hsCRP were still increased, revealing an aberrant metabolic and inflammatory state already in overweight, pre-pubertal children. Higher body mass index z-score, sagittal abdominal diameter, truncal and total body fat % were associated with an aberrant metabolic and inflammatory profile, emphasising the need for early prevention strategies although no programming effect of LF19 was observed.