Lung development in the fetal primate Macaca nemestrina. III. HMD.

Abstract:

:Delivery of M. nemestrina at 80% of normal gestation provides a population of neonates at high risk for hyaline membrane disease (HMD). The diagnosis of HMD was made by the presence of reticulogranular densities and air bronchograms on chest radiographs. Patchy atelectasis was seen in the lungs of animals assigned by clinical and radiographic criteria to the HMD group and not in the normal lungs of animals matched for gestational and postnatal age. Total phospholipid and phosphatidylcholine in whole lung, airway lavage fluid, and surface-active materials were lower in animals with HMD. Amniotic fluid L/S ratios were lower in the group that developed HMD. Pressure-volume measurements indicated decreased distensibility and unstable terminal air spaces in the HMD group. Alveolar-arterial oxygen pressure differences were greater in animals with HMD. There were no differences between HMD and normal groups in body weight, lung weight, percent dry lung weight, gestational age, and postnatal age at death. This primate species, subjected to premature delivery, is a suitable animal model of HMD in human neonates.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Prueitt JL,Palmer S,Standaert TA,Luchtel DL,Murphy JH,Hodson WA

doi

10.1203/00006450-197905000-00017

subject

Has Abstract

pub_date

1979-05-01 00:00:00

pages

654-9

issue

5 Pt 1

eissn

0031-3998

issn

1530-0447

journal_volume

13

pub_type

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