title: [Significance of lactose breath test in the newborn].
abstract: Lactose breath test have been performed in healthy newborns, in whom breath hydrogen excretion was preliminarily demonstrated by lactulose breath test. 27.5% of newborns showed positive lactose breath test, with no differences related to sex and gestational age, while a higher percentage of positive test has been found in < 2500 g and formula-fed neonates compared, respectively, to > or = 2500 g and breast-fed ones. In healthy newborns, without any clinical signs of lactose intolerance, it is possible to demonstrate hydrogen in expired air; this is not equivalent of lactose malabsorption, but, instead, depends on the phenomenon of colonic fermentation that allows energy and nutrient absorption.
authors.affiliation: Dipartimento di Biomedicina dell'Età Evolutiva, Università degli Studi, Bari.
authors.forename: N
authors.initials: N
authors.lastname: Laforgia
authors.forename: G
authors.initials: G
authors.lastname: Benedetti
authors.forename: T
authors.initials: T
authors.lastname: Altavilla
authors.forename: M E
authors.initials: ME
authors.lastname: Baldassarre
authors.forename: A
authors.initials: A
authors.lastname: Grassi
authors.forename: F
authors.initials: F
authors.lastname: Bonsante
authors.forename: A
authors.initials: A
authors.lastname: Mautone
mesh_terms: D001944:Breath Tests; D003937:Diagnosis, Differential; D005260:Female; D005865:Gestational Age; D006801:Humans; D006859:Hydrogen / Q000378:metabolism; D007231:Infant, Newborn; D007785:Lactose / Q000378:metabolism; D007787:Lactose Intolerance / Q000175:diagnosis*; D008297:Male
chemical_list: D006859:Hydrogen; D007785:Lactose
vernacular_title: Significato del breath test al lattosio in età neonatale.