scholarly journals Metabolomic Profile of Personalized Donor Human Milk

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5783
Author(s):  
Monica F. Torrez Lamberti ◽  
Evon DeBose-Scarlett ◽  
Timothy Garret ◽  
Leslie Ann Parker ◽  
Josef Neu ◽  
...  
Keyword(s):  
Human Milk ◽  
Complex Mixture ◽  
Metabolomic Analysis ◽  
Metabolomic Profile ◽  
Beneficial Bacteria ◽  
Donor Human Milk ◽  
Metabolite Profiles ◽  
Metabolite Concentrations ◽  
Mother’S Own Milk ◽  
The Impact

Human milk could be considered an active and complex mixture of beneficial bacteria and bioactive compounds. Since pasteurization drastically reduces the microbial content, we recently demonstrated that pasteurized donor human milk (DHM) could be inoculated with different percentages (10% and 30%) of mother’s own milk (MOM) to restore the unique live microbiota, resulting in personalized milk (RM10 and RM30, respectively). Pasteurization affects not only the survival of the microbiota but also the concentration of proteins and metabolites, in this study, we performed a comparative metabolomic analysis of the RM10, RM30, MOM and DHM samples to evaluate the impact of microbial restoration on metabolite profiles, where metabolite profiles clustered into four well-defined groups. Comparative analyses of DHM and MOM metabolomes determined that over one thousand features were significantly different. In addition, significant changes in the metabolite concentrations were observed in MOM and RM30 samples after four hours of incubation, while the concentration of metabolites in DHM remained constant, indicating that these changes are related to the microbial expansion. In summary, our analyses indicate that the metabolite profiles of DHM are significantly different from that of MOM, and the profile of MOM may be partially restored in DHM through microbial expansion.

scholarly journals Frozen Mother’s Own Milk Can Be Used Effectively to Personalize Donor Human Milk

2021 ◽  
Vol 12 ◽  
Author(s):  
Monica F. Torrez Lamberti ◽  
Natalie A. Harrison ◽  
Marion M. Bendixen ◽  
Evon M. DeBose-Scarlett ◽  
Sharon C. Thompson ◽  
...  
Keyword(s):  
Human Milk ◽  
Preterm Infants ◽  
Alpha Diversity ◽  
Innate Immune ◽  
Beneficial Bacteria ◽  
Microbial Composition ◽  
Fresh Sample ◽  
Donor Human Milk ◽  
Culture Independent ◽  
Mother’S Own Milk

Feeding preterm infants mother’s own milk (MOM) lowers rates of sepsis, decreases necrotizing enterocolitis, and shortens hospital stay. In the absence of freshly expressed MOM, frozen MOM (FMOM) is provided. When MOM is unavailable, preterm infants are often fed pasteurized donor human milk (DHM), rendering it devoid of beneficial bacteria. We have previously reported that when MOM is inoculated into DHM to restore the live microbiota [restored milk (RM)], a similar microbial diversity to MOM can be achieved. Yet, it is unknown if a similar diversity to MOM can be obtained when FMOM is inoculated into DHM. The goal of this study was to determine whether a similar microbial composition to MOM could be obtained when FMOM is used to personalize DHM. To this end, a fresh sample of MOM was obtained and divided into fresh and frozen fractions. MOM and FMOM were inoculated into DHM at different dilutions: MOM/FMOM 10% (RM/FRM10) and MOM/FMOM 30% (RM/FRM30) and incubated at 37°C. At different timepoints, culture-dependent and culture-independent techniques were performed. Similar microbiota expansion and alpha diversity were observed in MOM, RM10, and RM30 whether fresh or frozen milk was used as the inoculum. To evaluate if microbial expansion would result in an abnormal activation on the innate immune system, Caco-2 epithelial cells were exposed to RM/FRM to compare interleukin 8 levels with Caco-2 cells exposed to MOM or DHM. It was found that RM samples did not elicit a significant increase in IL-8 levels when compared to MOM or FMOM. These results suggest that FMOM can be used to inoculate DHM if fresh MOM is unavailable or limited in supply, allowing both fresh MOM and FMOM to be viable options in a microbial restoration strategy.

scholarly journals SARS-CoV-2 in human milk is inactivated by Holder pasteurization but not cold storage

2020 ◽  
Author(s):  
Gregory J. Walker ◽  
Vanessa Clifford ◽  
Nidhi Bansal ◽  
Alberto Ospina Stella ◽  
Stuart Turville ◽  
...  
Keyword(s):  
Viral Load ◽  
Human Milk ◽  
Cold Storage ◽  
Control Medium ◽  
Live Virus ◽  
Donor Human Milk ◽  
Milk Bank ◽  
The Stability ◽  
Milk Banks ◽  
Mother’S Own Milk

ABSTRACTAs the COVID-19 pandemic evolves, human milk banks worldwide continue to provide donor human milk to vulnerable infants who lack access to mother’s own milk. Under these circumstances, ensuring the safety of donor human milk is paramount, as the risk of vertical transmission of SARS-CoV-2 is not well understood. Here, we investigate the inactivation of SARS-CoV-2 in human milk by pasteurisation, and the stability of SARS-CoV-2 in human milk under cold storage (freezing or refrigeration). Following heating to 63°C or 56°C for 30 minutes, SARS-CoV-2 replication competent (i.e. live) virus was undetected in both human milk and the control medium. Cold storage of SARS-CoV-2 in human milk (either at 4°C or - 30°C) did not significantly impact infectious viral load over a 48 hour period. Our findings demonstrate that SARS-CoV-2 can be effectively inactivated by Holder pasteurisation, and confirm that existing milk bank processes will effectively mitigate the risk of transmission of SARS-COV-2 to vulnerable infants through pasteurised donor human milk.

scholarly journals Addition of Calcium and Phosphorus to Preterm Donor Human Milk and the Impact on Protein, Fat, and Calcium Digestibility In Vitro

2012 ◽  
Vol 4 (4) ◽  
pp. 199-206 ◽  
Author(s):  
April Danielle Fogleman ◽  
Ronald S. Cohen ◽  
Pauline Sakamoto ◽  
Jonathan C. Allen
Keyword(s):  
Human Milk ◽  
Donor Human Milk ◽  
Calcium And Phosphorus ◽  
The Impact

scholarly journals Inoculation of mother’s own milk could personalize pasteurized donor human milk used for feeding preterm infants

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
D. Mallardi ◽  
C. Tabasso ◽  
P. Piemontese ◽  
S. Morandi ◽  
T. Silvetti ◽  
...  
Keyword(s):  
Human Milk ◽  
Preterm Infants ◽  
Bacterial Growth ◽  
Microbiological Quality ◽  
In Vitro Study ◽  
Total Bacterial Count ◽  
Milk Samples ◽  
Donor Human Milk ◽  
Mother’S Own Milk

Abstract Background Human milk is a vehicle for bioactive compounds and beneficial bacteria which promote the establishment of a healthy gut microbiome of newborns, especially of preterm infants. Pasteurized donor human milk (PDHM) is the second-best option when preterm mother’s own milk is unavailable. Since pasteurization affect the microbiological quality of donor milk, PDHM was inoculated with different preterm milk samples and then incubated, in order to evaluate the effect in terms of bacterial growth, human milk microbiome and proteolytic phenomena. Methods In an in-vitro study PDHM was inoculated at 10% v/v using ten preterm milk samples. Microbiological, metataxonomic and peptidomic analyses, on preterm milk samples at the baseline (T0), on PDHM and on inoculated milk (IM) samples at T0, after 2 h (T1) and 4 h (T2) of incubation at 37 °C, were conducted. Results IM samples at T2 showed a Total Bacterial Count not significantly different (p > 0.01) compared to preterm milk samples. At T2 lactic acid bacteria level was restored in all IM. After inoculation, metataxonomic analysis in IM samples showed that Proteobacteria remained the predominant phylum while Firmicutes moved from 3% at T1 to 9.4% at T2. Peptidomic profile of IM resembled that of PDHM, incubated for the same time, in terms of number and type of peptides. Conclusion The study demonstrated that inoculation of PDHM with mother’s own milk could restore bacterial growth and personalize human milk microbiome in PDHM. This effect could be beneficial because of the presence of maternal probiotic bacteria which make PDHM more similar to mother’s own milk.

scholarly journals The Impact of Homogenization on Donor Human Milk and Human Milk-Based Fortifiers and Implications for Preterm Infant Health

2021 ◽  
Author(s):  
Sarah M Reyes ◽  
Biranchi Patra ◽  
Melinda J Elliott
Keyword(s):  
Human Milk ◽  
Preterm Infant ◽  
Milk Fat ◽  
Infant Health ◽  
Cow Milk ◽  
Published Data ◽  
Donor Human Milk ◽  
Milk Fat Globule ◽  
Health Complications ◽  
The Impact

Abstract An exclusive human milk diet (EHMD) has been shown to reduce health complications of prematurity in infants born weighing ≤1250 grams compared to cow milk-based diets. Accordingly, the number of available human milk (HM)-based nutritional products continues to increase. Newly available products, and those reportedly soon to enter the market include homogenized donor human milk (DHM) and homogenized HM–based fortifiers. Existing literature demonstrating the benefits of an EHMD, however, is limited to non-homogenized HM-based products. Herein, we summarize existing evidence on the impact of homogenization on HM, with a particular focus on changes to the macromolecular structure of the milk fat globule and its subsequent impact on digestion kinetics. We use these published data to create a conceptual framework for the potential implications of homogenized HM-based nutritional products on preterm infant health. Importantly, we underscore that the safety and efficacy of homogenized HM-based products warrant investigation.

Receiving Screened Donor Human Milk for Their Infant Supports Parental Wellbeing: a Mixed-methods Study

2021 ◽  
Author(s):  
Amy Brown ◽  
Natalie Shenker
Keyword(s):  
Mental Health ◽  
Human Milk ◽  
Infant Health ◽  
Positive Impact ◽  
Online Questionnaire ◽  
Donor Human Milk ◽  
Increased Risk ◽  
Health And Development ◽  
Almost All ◽  
The Impact

Abstract Background: Donor human milk (DHM) protects the health and development of premature infants but there has been little examination of the broader impact of an infant receiving it upon parental mental health. Breastfeeding and mental health are closely tied with women who experience breastfeeding difficulties or are unable to meet their own breastfeeding goals often experiencing feelings of guilt, sadness and anger, alongside an increased risk of postnatal depression. The aim of the current study was to explore how experience of receiving DHM for their baby affected the wellbeing of parents.Methods: UK parents of infants aged 0 – 12 months who had received screened DHM from a milk bank (typically on the neonatal unit or in some cases in the community) completed an online questionnaire exploring their experiences. The questionnaire included Likert scale items examining perceived impact upon infant health, own wellbeing and family functioning alongside open-ended questions exploring perceptions of how receiving DHM affected wellbeing.Results: Almost all of the 107 participants (women=102) agreed that receiving DHM had a positive impact upon infant health and development, their own mental and physical health, and their family’s wellbeing. Parents felt relieved that their infant was receiving DHM for health reasons but also due to the experience of being listened to, supported and having their infant feeding decisions facilitated. Receiving DHM helped mothers to process some of their emotions at not being able to breastfeed, in part because knowing their baby was being fed gave them the space to focus on recovery and bonding with their baby. Some parents did experience challenges, feeling guilty at receiving DHM, insecure that another woman was able to feed their baby when they could not, with some negative reactions from family. Although the impact of receiving DHM upon breastfeeding was not measured, some women who were working to build their own milk supply noted that it helped motivate them to continue.Conclusions: DHM may play an important role not only in protecting infant health and development but in supporting the mental health and wellbeing of mothers for whom their infant receiving human milk is important.

The Influence of Donor Milk Supplementation on Duration of Parenteral Nutrition in Preterm Infants

2020 ◽  
Vol 36 (2) ◽  
pp. 245-253
Author(s):  
Bibiana Chinea Jiménez ◽  
Marta Cabrera Lafuente ◽  
María L. Couce ◽  
Rosario Madero ◽  
Maximo Vento ◽  
...  
Keyword(s):  
Parenteral Nutrition ◽  
Human Milk ◽  
Enteral Feeding ◽  
Venous Catheter ◽  
Convenience Sample ◽  
Donor Human Milk ◽  
Before And After ◽  
Group 2 ◽  
Mother’S Own Milk ◽  
Group 1

Background Data are limited on the association between the use of donor human milk and improvements in feeding tolerance. Objective To determine the influence of the duration of parenteral nutrition on the growth and morbidity of the breastfed newborn when using donated human milk in the absence of mother’s own milk. Methods We conducted a retrospective study before and after the intervention that compared two groups of newborns ( N = 284; each group n = 142). We used a convenience sample of all newborns ≤32 weeks gestation consecutively admitted in a single unit before (Group 1 between December 2012 and May 2014) or after (Group 2 between October 2014 and December 2016) the availability of donor human milk. In Group 2, donor human milk was administered at least 3 to 4 weeks or until the baby weighed 1,500 g. Weight was recorded daily and length and head circumference weekly. Parenteral nutrition was continued until enteral feeding volume reached 120 ml/kg/day. Additional variables measured were the number of days with a central venous catheter, age that the enteral feeding volume reached 150 ml/kg/day, and duration of stay. Results The duration of parenteral feeding was the same before and after: 12 (8.23) and 11 (7.19) days ( p = .822). The z scores for weight and height of newborns was lower in Group 2 = −1.8 (1.0) and −2.3 (1.1) and Group 1 = −1.2 (1.1) ( p < .001) and −1.8 (1.4) ( p = .005). Conclusion We did not find an association between the administration of donor human milk as a supplement to mother’s own milk and reduced number of days of parenteral nutrition. Back translation by Laurence Grummer-Strawn

scholarly journals The Effect of Donor Human Milk Fortification on The Adhesion of Probiotics In Vitro

Nutrients ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 182 ◽  
Author(s):  
Anastasia Mantziari ◽  
Satu Tölkkö ◽  
Artur C. Ouwehand ◽  
Eliisa Löyttyniemi ◽  
Erika Isolauri ◽  
...  
Keyword(s):  
Human Milk ◽  
Liquid Scintillation ◽  
Adhesion Properties ◽  
Protein Supplements ◽  
Donor Human Milk ◽  
Probiotic Strains ◽  
Human Milk Fortifier ◽  
The Impact ◽  
And Storage

Preterm delivery complications are the primary cause of death among children under the age of five. Preventive strategies include the use of pasteurized donor human milk (DHM), its fortification with human milk fortifiers (protein supplements), and supplementation with probiotics. Our aim was to examine the impact of DHM and fortified DHM (FDHM) on the mucus adhesion properties of two widely used probiotics. The study covered two forms of human milk fortifier, liquid and powdered, with or without probiotics and storage at 4 °C for 24 h. To test the adhesion properties of the probiotic strains, DHM+probiotics and FDHM+probiotics were prepared and added to immobilized mucus isolated from the stool of healthy Finnish infants. The probiotic adhesion was then measured by liquid scintillation. Our results suggest that addition of liquid or powdered human milk fortifier in donor human milk had no impact on probiotic adhesion. In addition, given the increased adhesion of probiotics suspended in buffer, other matrices should be further studied. These factors need to be considered when designing future intervention strategies using probiotics in preterm infants.

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