ADRENAL GLAND STRUCTURE AND THE DEVELOPMENT OF HYALINE MEMBRANE DISEASE

PEDIATRICS ◽  
1971 ◽  
Vol 47 (4) ◽  
pp. 650-657
Author(s):  
Richard L. Naeye ◽  
Howard T. Harcke ◽  
William A. Blanc
Keyword(s):  
Adrenal Glands ◽  
Hyaline Membrane Disease ◽  
Alveolar Cells ◽  
Cortical Function ◽  
Lung Maturation ◽  
Cortical Cells ◽  
Corticosteroid Administration ◽  
Osmiophilic Granules ◽  
Hyaline Membrane ◽  
Type Ii Alveolar Cells

Adrenal cortical function may influence the development of hyaline membrane disease. Corticosteroid administration to animal fetuses reportedly accelerates some parameters of lung maturation. Analysis of 387 consecutive autopsies on human neonates demonstrated that adrenal glands were 19% lighter in infants with hyaline membrane disease than in those without the disorder owing to a greater number of adrenal cortical cells in the latter infants. A positive correlation was found between the presence of infection arising before birth and the absence of hyaline membrane disease, the infected infants having larger adrenal glands. It was found that anencephalic neonates who had little or no adrenal fetal cortical zone and half sized adult zones had 45% the mass of osmiophilic granules in pulmonary type II alveolar cells as did nonanencephalic control infants. The osmiophilic granules are reportedly the anatomic representation of surfactant.

THE ALVEOLAR LINING LAYER

PEDIATRICS ◽  
1962 ◽  
Vol 30 (2) ◽  
pp. 324-330
Author(s):  
Mary Ellen Avery
Keyword(s):  
Surface Tension ◽  
Secretory Activity ◽  
Hyaline Membrane Disease ◽  
Normal Lung ◽  
Elastic Recoil ◽  
Alveolar Cells ◽  
Electron Microscopic ◽  
Hyaline Membrane ◽  
Surface Active ◽  
Air Liquid Interface

The alveoli of the normal lung are lined by a substance which exerts surface tension at the air-liquid interface. In the expanded lung the tension is high and operates to increase the elastic recoil of the lung. In the lung at low volumes the surface tension becomes extremely low. This confers stability on the airspaces and thus prevents atelectasis. This lining layer is a lipoprotein film, which is not found where alveoli are still lined by cuboidal epithelium. Its time of appearance coincides with the appearance of alveolar lining cells. Electron microscopic evidence of secretory activity in alveolar cells suggests that they may be the source of the surface-active film. The normal alveolar lining layer is not present in lungs of infants who die from profound atelectasis and hyaline membrane disease. Whether its absence is a failure of development or due to inactivation is not established.

THE ADRENAL CORTEX, STEROIDS, AND HYALINE MEMBRANE DISEASE

PEDIATRICS ◽  
1971 ◽  
Vol 47 (4) ◽  
pp. 645-646
Author(s):  
John W. Reynolds
Keyword(s):  
Adrenal Cortex ◽  
Adrenal Glands ◽  
Direct Evidence ◽  
Matched Control ◽  
Newborn Infants ◽  
Hyaline Membrane Disease ◽  
Type Ii ◽  
Hyaline Membrane ◽  
Issue Reports ◽  
Number Of Cells

The paper by Naeye, et al.,1 in this issue reports a very interesting relation between adrenal gland size and the presence of hyaline membrane disease in newborn infants. Those infants with hyaline membrane disease had smaller adrenal glands than weight matched control infants, due to a decreased number of cells in both the permanent and fetal zones of the adrenal cortex. More direct evidence of possible relation between adrenal cortical size and the capacity of the lung to produce surfactant is brought out by their finding of a correlation between adrenal cortical size in anencephalic infants and the osmiophilic granule content of so-called type II alveolar lining cells.

Hyaline membrane disease in black newborns: does fetal lung maturation occur earlier?

1994 ◽  
Vol 55 (3) ◽  
pp. 157-161 ◽  
Author(s):  
Pierre-Yves Robillard ◽  
Thomas C. Hulsey ◽  
Greg R. Alexander ◽  
Marie-Pierre Sergent ◽  
François de Caunes ◽  
...  
Keyword(s):  
Fetal Lung ◽  
Hyaline Membrane Disease ◽  
Lung Maturation ◽  
Hyaline Membrane ◽  
Fetal Lung Maturation

In Quest of the Prevention of Hyaline Membrane Disease

1977 ◽  
Vol 86 (5) ◽  
pp. 573-576 ◽  
Author(s):  
Mary Ellen Avery
Keyword(s):  
Fetal Lung ◽  
Hyaline Membrane Disease ◽  
Maternal Diabetes ◽  
Lung Maturation ◽  
Familial Predisposition ◽  
Surfactant Synthesis ◽  
Elective Delivery ◽  
Hyaline Membrane ◽  
Specific Receptors ◽  
Prematurely Born Infants

Hyaline membrane disease or respiratory distress syndrome of prematurely born infants is more common in males, in Caucasians, has a familial predisposition, and is associated with maternal diabetes and delivery by cesarean section before the onset of labor. Now known to be the sequel of surfactant deficiency, it can be predicted prenatally by assay of amniotic liquid for surface active materials produced by the fetal lung. Deficiency of adequate surfactant synthesis or secretion can result in low levels of lecithins and other phospholipids in amniotic liquid. Lung maturation can be accelerated if labor or elective delivery can be deferred at least 24 hours. Glucocorticoids given to the mother cross the placenta and enter fetal lung tissues; specific receptors exist in the lung which permit glucocorticoids to promote cell differentiation and surfactant synthesis precociously. Clinical trials support the efficacy and lack of short-term toxicity of glucocorticoids in human pregnancy after 28 weeks gestation in the event of premature onset of labor. Maternal toxemia, infection or illness which may be aggravated by glucocorticoids may contraindicate prenatal treatment. Postnatally endogenous glucocorticoids accelerate lung maturation, and further administration confers no additional benefit.

Fetal lung maturity in complicated pregnancy, as predicted from microviscosity of amniotic fluid.

1982 ◽  
Vol 28 (8) ◽  
pp. 1754-1757 ◽  
Author(s):  
N V Simon ◽  
W A Hohman ◽  
R C Elser ◽  
J S Levisky ◽  
M J Carp ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Fetal Lung ◽  
Hyaline Membrane Disease ◽  
Lung Maturation ◽  
Class D ◽  
Hyaline Membrane ◽  
Induced Hypertension ◽  
Complicated Pregnancy ◽  
Fetal Lung Maturation ◽  
Lung Maturity

Abstract We measured the microviscosity of amniotic fluid between 28 and 40 weeks of gestation in 252 normal pregnancies and in 172 pregnancies complicated by factors known to influence fetal lung maturation, including chronic high blood pressure, pregnancy-induced hypertension, diabetes mellitus, and therapy with betamethasone. Comparison of the microviscosity value distributions and regression analysis indicated significantly lower microviscosity values in hypertensive disorders, in Class D and Classes F or R diabetes, and after 48 h of treatment with betamethasone. Few changes were observed in Classes A, B, or C diabetes. These observations are consistent with the accelerated maturation of surfactant observed in chronic intrauterine stress and the lower incidence of hyaline membrane disease reported after glucocorticoids.

Racial and Environmental Influences on Fetal Lung Maturation

PEDIATRICS ◽  
1981 ◽  
Vol 68 (6) ◽  
pp. 790-795
Author(s):  
Samuel Ross ◽  
Richard L. Naeye
Keyword(s):  
South African ◽  
Fetal Lung ◽  
Hyaline Membrane Disease ◽  
The United States ◽  
African Women ◽  
The South ◽  
Lung Maturation ◽  
The Us ◽  
Hyaline Membrane ◽  
Fetal Lung Maturation

Claims that fetal lung maturation is more rapid in blacks than in whites were investigated. Histologic measurements of lung maturation and the frequency of hyaline membrane disease were compared in four groups of neonates: 490 South African blacks, 841 Ethiopians, 767 US blacks, and 560 US whites. Lungs matured much more rapidly in the Ethiopian and more slowly in the South African than in the US fetuses. The rate of maturation was about the same in US blacks and whites. Hyaline membrane disease was more frequent in the South Africans and less frequent in the Ethiopians than in either US group. Environmental factors in the mother may explain some of these differences. Lungs matured more rapidly in the fetuses of cigarette smokers than in fetuses of nonsmokers. Half of the US mothers but almost none of the South African mothers smoked during pregnancy. The rate of lung maturation had an inverse correlation with maternal body weights. The South African women were heavier and the Ethiopians lighter than women in the United States.

scholarly journals Relationship Between Incidence of Hyaline Membrane Disease and Maternal Hypertension During Pregnancy

2017 ◽  
Vol 38 (3-4) ◽  
pp. 47
Author(s):  
Lasmida Nazir Nuriman ◽  
Dadang Sjarif Hidajat
Keyword(s):  
Distress Syndrome ◽  
Hyaline Membrane Disease ◽  
Cross Sectional Study ◽  
Type I ◽  
Cross Sectional ◽  
Hypertension In Pregnancy ◽  
Hyaline Membrane ◽  
Neonatal Respiratory Distress ◽  
Maternal Hypertension ◽  
The Relationship

There have been controversies over the eiTect of hypertension in pregnancy on the incidence of type I neonatal respiratory distress syndrome or hyaline membrane disease (HMD). We investigated the relationship between the incidence of HMD and maternal hypertension during pregnancy in 91 infants at 34 weeks gestation or less. This retrospective cross sectional study included all live born babies between May 1, 1994 and April 30, 1995 at Dr. Hasan Sadikin General Hospital, Bandung. Maternal hypertension during pregnancy was diagnosed in 38 mothers of91 infants studied. The incidence of HMD (5%) in the maternal hypertension during pregnancy group was significantly lower than the 62% in the normotensive group (p<0.01). There was a negative correlation between the occurence of HMD and hypertension during pregnancy. We conclude that the risk of developing HMD in infants born to hypertensive mothers is significantly lower than those born to normotensive mothers.

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