scholarly journals Acrylamide Content in Breast Milk: The Evaluation of the Impact of Breastfeeding Women’s Diet and the Estimation of the Exposure of Breastfed Infants to Acrylamide in Breast Milk

Toxics ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 298
Author(s):  
Hanna Mojska ◽  
Iwona Gielecińska ◽  
Joanna Winiarek ◽  
Włodzimierz Sawicki
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Maillard Reaction ◽  
Mature Milk ◽  
Dietary Recall ◽  
Breastfed Infants ◽  
Milk Samples ◽  
Dietary Acrylamide ◽  
The Impact ◽  
Carcinogenic Compound

Acrylamide in food is formed by the Maillard reaction. Numerous studies have shown that acrylamide is a neurotoxic and carcinogenic compound. The aim of this study was to determine the level of acrylamide in breast milk at different lactation stages and to evaluate the impact of breastfeeding women’s diet on the content of this compound in breast milk. The acrylamide level in breast milk samples was determined by LC–MS/MS. Breastfeeding women’s diet was evaluated based on the 24 h dietary recall. The median acrylamide level in colostrum (n = 47) was significantly (p < 0.0005) lower than in the mature milk (n = 26)—0.05 µg/L and 0.14 µg/L, respectively. The estimated breastfeeding women’s acrylamide intake from the hospital diet was significantly (p < 0.0001) lower than that from the home diet. We found positive—although modest and borderline significant—correlation between acrylamide intake by breastfeeding women from the hospital diet µg/day) and acrylamide level in the colostrum (µg/L). Acrylamide has been detected in human milk samples, and a positive correlation between dietary acrylamide intake by breastfeeding women and its content in breast milk was observed, which suggests that the concentration can be reduced. Breastfeeding women should avoid foods that may be a source of acrylamide in their diet.

scholarly journals Analysis of the Major Probiotics in Healthy Women’s Breast Milk by Realtime PCR. Factors Affecting the Presence of Those Bacteria

2021 ◽  
Vol 11 (20) ◽  
pp. 9400
Author(s):  
Georgia Nikolopoulou ◽  
Theofania Tsironi ◽  
Panagiotis Halvatsiotis ◽  
Ekaterini Petropoulou ◽  
Nikolaos Genaris ◽  
...  
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Urban Areas ◽  
Microbiological Analysis ◽  
Mature Milk ◽  
Factors Affecting ◽  
Milk Samples ◽  
Realtime Pcr ◽  
Healthy Women ◽  
Lactation Stage

Breast milk has been reported as a bacteria source that affects infant gut microbiota development. The present study utilizes a realtime PCR method to identify Lactobacillus and Bifidobacterium spp. in the breast milk of healthy women and attempts to identify factors affecting those human milk bacteria. Breast milk samples—both colostrum and mature milk—of 100 healthy women, were collected in Greece along with data about the demographic factors and nutritional habits of the volunteers. The colostrum samples were found to have higher percentages of either Bifidobacterium or Lactobacillus (76.9% and 48.6%, respectively) compared to the mature milk samples. For younger women, aged from 18 to 29 years, and women from rural areas, bacteria were detected in higher incidence than for older groups and women in urban areas, respectively. Moreover, for high-BMI women, bacteria were detected in lower incidence than for those with normal BMI. Probiotic supplements did not affect the composition of the breast milk-identified bacteria. Various factors such as lactation stage, maternal age, maternal weight, and residential location may contribute to the presence of those species in human milk. RT PCR has significant potential for the microbiological analysis of human milk.

scholarly journals Anti-Sars-Cov-2 IgA And IgG In Human Milk After Vaccination Is Dependent On Vaccine Type And Previous Sars-Cov-2 Exposure: A Longitudinal Study.

2021 ◽  
Author(s):  
Marta Selma-Royo ◽  
Christine Bauerl ◽  
Desiree Mena-Tudela ◽  
Laia Aguilar-Camprubi ◽  
Francisco Jose Perez-Cano ◽  
...  
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Protective Role ◽  
Lactating Women ◽  
Time Points ◽  
Milk Samples ◽  
Vaccine Type ◽  
Vaccine Impact ◽  
Vectored Vaccine ◽  
The Impact

Importance: Limited data are available on COVID-19 vaccine impact in lactating women. Objective: To evaluate the impact of different COVID-19 vaccines on specific anti-SARS-CoV-2 IgA and IgG levels in human milk. Design, Settings and Participants: In this prospective observational study in Spain, 75 lactating women from priority groups receiving vaccination against SARS-CoV-2 were included (January to April 2021). Human milk samples were collected at seven-time points. A group with confirmed SARS-CoV-2 infection (n=19) and a group of women from prepandemic time (n=13) were included. Exposure: mRNA vaccines (BNT162b2 and mRNA-1273) and adenovirus-vectored vaccine (ChAdOx1 nCoV-19). Main Outcome(s) and Measure(s): Presence of IgA and IgG against RBD SARS-CoV-2 in breast milk. Results: Seventy-five vaccinated lactating women [mean age, 34.9±3.7 years] of whom 96% were Caucasic and 92% were health care workers. A total of 417 milk samples were included and vaccine distribution was BioNTech/Pfizer (BNT162b2, n=30), Moderna (mRNA-1273, n=21), and AstraZeneca (ChAdOx1 nCoV-19, n=24). For each vaccine, 7 time points were collected from baseline up to 25 days after the 1st dose and same points were collected for mRNA vaccines 30 days after 2nd dose. A strong reactivity was observed for IgG and IgA after vaccination mainly after the 2nd dose. Presence and the persistence of specific SARS-CoV-2 antibodies in breast milk were dependent on the vaccine-type and, on previous virus exposure. High inter-variability was observed, being relevant for IgA antibodies. IgG levels were significantly higher than those observed in milk from COVID-19 women while IgA levels were lower. Women with previous COVID-19 increased the IgG levels after the 1st dose to a similar level observed in vaccinated women after the 2nd dose. Conclusions and Relevance: Breast milk from vaccinated women contains anti-SARS-CoV-2 IgA and IgG, with highest after the 2nd dose. Levels were dependent on vaccine type and previous exposure to SARS-CoV-2. Previous COVID-19 influenced the vaccine effect after a single dose, which could be especially relevant in the design of vaccination protocols . Further studies are warranted to demonstrate the potential protective role of these antibodies against COVID-19 in infants from vaccinated and infected mothers through breastfeeding.

scholarly journals Influence of Previous COVID-19 and Mastitis Infections on the Secretion of Brain-Derived Neurotrophic Factor and Nerve Growth Factor in Human Milk

2021 ◽  
Vol 22 (8) ◽  
pp. 3846
Author(s):  
Veronique Demers-Mathieu ◽  
Dustin J. Hines ◽  
Rochelle M. Hines ◽  
Sirima Lavangnananda ◽  
Shawn Fels ◽  
...  
Keyword(s):  
Nerve Growth Factor ◽  
Growth Factor ◽  
Breast Milk ◽  
Human Milk ◽  
Neurotrophic Factor ◽  
Critical Role ◽  
Brain Derived Neurotrophic Factor ◽  
Nerve Growth ◽  
Milk Samples ◽  
The Impact

Background: Brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) play a critical role in neurodevelopment, where breast milk is a significant dietary source. The impact of previous COVID-19 infection and mastitis on the concentration of BDNF and NGF in human milk was investigated. Methods: Concentrations of BDNF and NGF were measured via ELISA in human milk samples collected from 12 mothers with a confirmed COVID-19 PCR, 13 mothers with viral symptoms suggestive of COVID-19, and 22 unexposed mothers (pre-pandemic Ctl-2018). These neurotrophins were also determined in 12 mothers with previous mastitis and 18 mothers without mastitis. Results: The NGF concentration in human milk was lower in the COVID-19 PCR and viral symptoms groups than in the unexposed group, but BDNF did not differ significantly. Within the COVID-19 group, BDNF was higher in mothers who reported headaches or loss of smell/taste when compared with mothers without the respective symptom. BDNF was lower in mothers with mastitis than in mothers without mastitis. Conclusions: Previous COVID-19 and mastitis infections changed differently the secretion of NGF and BDNF in human milk. Whether the changes in NGF and BDNF levels in milk from mothers with infection influence their infant’s development remains to be investigated.

scholarly journals Human Milk Oligosaccharides (HMOs) and Infant Microbiota: A Scoping Review

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1429
Author(s):  
Cristina Sánchez ◽  
Cristina Fente ◽  
Patricia Regal ◽  
Alexandre Lamas ◽  
María Paz Lorenzo
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Mode Of Delivery ◽  
Geographic Location ◽  
Microbial Colonization ◽  
Human Milk Oligosaccharides ◽  
Maternal Factors ◽  
Milk Oligosaccharides ◽  
Breastfed Infants ◽  
The Impact

Human milk oligosaccharides (HMOs) are the third most abundant solid component of breast milk. However, the newborn cannot assimilate them as nutrients. They are recognized prebiotic agents (the first in the newborn diet) that stimulate the growth of beneficial microorganisms, mainly the genus Bifidobacterium, dominant in the gut of breastfed infants. The structures of the oligosaccharides vary mainly according to maternal genetics, but also other maternal factors such as parity and mode of delivery, age, diet, and nutritional status or even geographic location and seasonality cause different breast milk oligosaccharides profiles. Differences in the profiles of HMO have been linked to breast milk microbiota and gut microbial colonization of babies. Here, we provide a review of the scope of reports on associations between HMOs and the infant gut microbiota to assess the impact of HMO composition.

scholarly journals Polyamines in human breast milk for preterm and term infants

2013 ◽  
Vol 110 (3) ◽  
pp. 524-528 ◽  
Author(s):  
J. Plaza-Zamora ◽  
M. Sabater-Molina ◽  
M. Rodríguez-Palmero ◽  
M. Rivero ◽  
V. Bosch ◽  
...  
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Human Breast Milk ◽  
Gut Development ◽  
Human Breast ◽  
Mature Milk ◽  
Term Infants ◽  
Milk Samples ◽  
Preterm Babies ◽  
Transition Milk

Maternal milk is the first source of exogenous polyamines for the newborn. Polyamines modulate gut maturation in neonates, but no studies are available on polyamine concentration in human milk of preterm babies, even though they could be important for their immature gut. The present study aimed to determine polyamine concentration in human breast milk of mothers with preterm or term infants during the first month of lactation. Human milk samples were obtained during the first month of lactation from twenty-seven mothers with preterm babies and twelve mothers with babies born at term. The polyamine concentration in human milk was quantified by HPLC. During the first month of lactation, the total polyamine concentration was significantly higher in preterm milk than in term milk samples (7590 (sd 4990) v. 4660 (sd 4830) nmol/l, respectively (P =0·034)), as well as individual polyamine concentrations. Polyamine concentration in mature milk for preterm babies was significantly higher than that in mature milk for babies at term, and a similar trend was observed in colostrum and transition human milk. The spermidine/spermine ratio was higher in transition milk in preterm v. term samples, while in mature milk, the ratio was significantly lower in preterm than in term babies. In conclusion, the polyamine concentration was significantly higher in human milk for preterm than for term infants. This and the different spermidine/spermine ratios could influence the gut development of premature babies.

scholarly journals COVID-19 Vaccine mRNABNT162b2 Elicits Human Antibody Response in Milk of Breastfeeding Women

Vaccines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 785
Author(s):  
Maurizio Guida ◽  
Daniela Terracciano ◽  
Michele Cennamo ◽  
Federica Aiello ◽  
Evelina La Civita ◽  
...  
Keyword(s):  
Breast Milk ◽  
Antibody Response ◽  
Human Milk ◽  
Human Antibody ◽  
Serum Antibodies ◽  
Serum Samples ◽  
Low Concentration ◽  
Milk Samples ◽  
Milk Antibodies ◽  
Roche Diagnostics

Objective: The objective of this research is to demonstrate the release of SARS-CoV-2 Spike (S) antibodies in human milk samples obtained by patients who have been vaccinated with mRNABNT162b2 vaccine. Methods: Milk and serum samples were collected in 10 volunteers 20 days after the first dose and 7 seven days after the second dose of the mRNABNT162b2 vaccine. Anti-SARS-CoV-2 S antibodies were measured by the Elecsys® Anti-SARS-CoV-2 S ECLIA assay (Roche Diagnostics AG, Rotkreuz, Switzerland), a quantitative electrochemiluminescence immunometric method. Results: At first sample, anti-SARS-CoV-2 S antibodies were detected in all serum samples (103.9 ± 54.9 U/mL) and only in two (40%) milk samples with a low concentration (1.2 ± 0.3 U/mL). At the second sample, collected 7 days after the second dose, anti-SARS-CoV-2 S antibodies were detected in all serum samples (3875.7 ± 3504.6 UI/mL) and in all milk samples (41.5 ± 47.5 UI/mL). No correlation was found between the level of serum and milk antibodies; the milk antibodies/serum antibodies ratio was on average 2% (range: 0.2–8.4%). Conclusion: We demonstrated a release of anti-SARS-CoV-2 S antibodies in the breast milk of women vaccinated with mRNABNT162b2. Vaccinating breastfeeding women could be a strategy to protect their infants from COVID-19 infection.

scholarly journals Longitudinal Changes in the Concentration of Major Human Milk Proteins in the First Six Months of Lactation and Their Effects on Infant Growth

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1476
Author(s):  
Jian Zhang ◽  
Ai Zhao ◽  
Shiyun Lai ◽  
Qingbin Yuan ◽  
Xiaojiang Jia ◽  
...  
Keyword(s):  
Human Milk ◽  
Maternal Education ◽  
Mode Of Delivery ◽  
Milk Proteins ◽  
Protein Composition ◽  
Infant Growth ◽  
Term Infants ◽  
Longitudinal Changes ◽  
Milk Samples ◽  
The Impact

Our knowledge related to human milk proteins is still limited. The present study determined the changes in multiple human milk proteins during the first six months of lactation, investigated the influencing factors of milk proteins, and explored the impact of milk proteins on infant growth. A total of 105 lactating women and their full-term infants from China were prospectively surveyed in this research. Milk samples were collected at 1–5 days, 8–14 days, 1 month, and 6 months postpartum. Concentrations of total protein and α-lactalbumin were measured in all milk samples, and concentrations of lactoferrin, osteopontin, total casein, β-casein, αs−1 casein, and κ-casein were measured in milk from 51 individuals using ultra performance liquid chromatography coupled with mass spectrometry. The concentration of measured proteins in the milk decreased during the first six months of postpartum (p-trend < 0.001). Maternal age, mode of delivery, maternal education, and income impacted the longitudinal changes in milk proteins (p-interaction < 0.05). Concentrations of αs−1 casein in milk were inversely associated with the weight-for-age Z-scores of the infants (1 m: r −0.29, p 0.038; 6 m: r −0.33, p 0.020). In conclusion, the concentration of proteins in milk decreased over the first six months postpartum, potentially influenced by maternal demographic and delivery factors. Milk protein composition may influence infant weights.

scholarly journals Immunoglobulin A antibodies directed againstCampylobacter jejuniflagellin present in breast–milk

1994 ◽  
Vol 112 (2) ◽  
pp. 359-365 ◽  
Author(s):  
I. Nachamkin ◽  
S. H. Fischer ◽  
X.-H. Yang ◽  
O. Benitez ◽  
A. Cravioto
Keyword(s):  
Breast Milk ◽  
Protective Effect ◽  
Statistical Significance ◽  
Immunoglobulin A ◽  
Specific Antibodies ◽  
Breastfed Infants ◽  
Milk Samples ◽  
The Difference ◽  
Campylobacter Infection ◽  
The Relationship

SUMMAYWe studied the relationship between IgA anti–campylobacter flagellin antibodies in breast milk samples and protection of breastfed infants living in a rural Mexican village from campylobacter infection. There were fewer episodes of campylobacter infection (symptomatic and asymptomatic combined) in infants breastfed with milk containing specific anti-flagellin antibodies (1.2/child/year, 95% CI 0.6–1.8) versus non–breastfed children (3.3/child/year, 95% CI 1.8–4.8; P < 0.01). Infants breastfed with milk that was antiflagellin antibody negative by ELISA also had fewer episodes of infection compared with non-breastfed children, but the difference did not reach statistical significance (1.8/child/year, 95% CI 0.7–3.0 versus 3.3/child/year, 95% CI 1.8–4.8, P > 0.05). Breastfeeding has a protective effect against campylobacter infection and is associated with the presence of specific antibodies directed against campylobacter flagellin.

Gestational Hypertension and Their Impact on Activin A Concentration of the Human Milk

2021 ◽  
Author(s):  
Chiara Peila ◽  
Elena Spada ◽  
Alessandra Coscia ◽  
Stefano Sottemano ◽  
Giulia Fregnan ◽  
...  
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Fixed Effects ◽  
Gestational Hypertension ◽  
Random Effect ◽  
Covariance Structure ◽  
Study Groups ◽  
Activin A ◽  
Mature Milk ◽  
Significant Difference

Abstract Introduction It is known that Preeclampsia affects the lactogenesis, but literature data on the effects of this syndrome on the neurobiomarkers composition and Activin A of Human Milk of the lactating mother are not available. The aim of this study is to investigate the effects of this gestational pathology on Activin A levels, a neurobiomarker known to play an important role in the development and protection of the central nervous system.Methods The women recruited in the study were divided in two different study groups: preeclamptic or healthy women. All the breast milk samples were collected using the same procedure into sterile devices BPA-free. Activin A was quantified using an ELISA test. To investigate the effect of pathology in the Activin a concentration in the 3 phases, mixed linear model with unistructural covariance structure, mother as random effect, and fixed effects were performed.Results Activin A was detected in all samples. There were no significant differences between Preeclamptic mother and Normotensive women. The only significant effect is related to the HM phase: in particular, it is significant the difference between colostrum and mature milk (p<0.01).Conclusion There is not any significant difference in Activin A breast milk composition from hypertensive and normotensive women. This result allows us to affirm that breast milk beneficial properties are maintained even if gestational hypertension occurs.

Human Breast Milk Contains Bovine lgG. Relationship to Infant Colic?

PEDIATRICS ◽  
1991 ◽  
Vol 87 (4) ◽  
pp. 439-444
Author(s):  
Patrick S. Clyne ◽  
Anthony Kulczycki
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
Milk Protein ◽  
Cow’S Milk ◽  
Human Breast Milk ◽  
Human Breast ◽  
Cow's Milk ◽  
Milk Samples ◽  
Infant Colic ◽  
Β Lactoglobulin

Previous studies have suggested that an unidentified cow's milk protein, other than β-lactoglobulin and casein, might play a pathogenetic role in infant colic. Therefore, a radioimmunoassay was used to analyze human breast milk and infant formula samples for the presence of bovine IgG. Milk samples from 88 of the 97 mothers tested contained greater than 0.1 µg/mL of bovine IgG. In a study group of 59 mothers with infants in the colic-prone 2- to 17-week age group, the 29 mothers of colicky infants had higher levels of bovine IgG in their breast milk (median 0.42 µg/mL) than the 30 mothers of noncolicky infants (median 0.32 µg/mL) (P &lt; .02). The highest concentrations of bovine IgG observed in human milk were 8.5 and 8.2 µg/mL. Most cow's milk-based infant formulas contained 0.6 to 6.4 µg/mL of bovine IgG, a concentration comparable with levels found in many human milk samples. The results suggest that appreciable quantities of bovine IgG are commonly present in human milk, that significantly higher levels are present in milk from mothers of colicky infants, and that bovine IgG may possibly be involved in the pathogenesis of infant colic.

Sign in / Sign up

Export Citation Format

Share Document