Influence of Physical Treatments of Human Milk on the Kinetics of Gastric

Status Completed

Clinical Trial Summary

The optimization of newborns nutrition is a challenge especially for preterm newborns for whom nutrition plays a crucial part in cerebral and global development. Human milk is considered as the best food for newborns. Several short and long-term beneficial health effects were attributed to breastfeeding and have induced the increase of human milk in preterm newborns nutrition. Whereas the chemical composition of infant formula has been optimized to mimic human milk, there is still a major difference between the structure of human milk and commercial infant formulas. It is well known in adult nutrition that the structure of emulsions influences their susceptibility to hydrolysis, such results have been obtained either on in vitro or in vivo studies. Human milk is a natural emulsion (oil in water). Lipids droplets are dispersed under the form of entities called milk fat globules (average diameter 4 µm, span 0.1-20 μm). The globules are stabilized by a trilayered membrane composed mainly of polar lipids (phospholipids, sphingolipids and gangliosides), of proteins, neutral lipids and other minor compounds. The physical treatments apply to human milk or more generally to bovine milk to pasteurize or stabilize the milk modify the structure of the natural emulsion. Heat treatment for instance induces whey proteins denaturation and the adsorption of protein aggregates on the surface of the milk fat globules. Heat treatment also leads to the denaturation of bile salt stimulated lipase. These effects limit intragastric lipolysis in preterm newborns. Conversely, reduction of milk globules size, by homogenisation of milk, increases the specific surface available for lipase adsorption and limits the lost of fat during enteral administration of milk. Such treatment could thus enhance gastric lipolysis and improve fat absorption of preterm newborns. The objective of this trial is to evaluate the effects of physical treatments (pasteurization and homogenisation by ultrasonication) applied to human milk on gastric lipolysis and milk destructuration. This trial is conducted, in vivo, on preterm newborns.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Premature Birth

Clinical Trial Details

NCT number	NCT02112331
Study type	Interventional
Source	Rennes University Hospital
Contact
Status	Completed
Phase	N/A
Start date	April 2014
Completion date	April 2016

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Influence of Physical Treatments of Human Milk on the Kinetics of Gastric Lipolysis in Preterm Newborns — ARCHILACT

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms