G
George J. Knight
Researcher at Pennsylvania Hospital
Publications - 73
Citations - 6242
George J. Knight is an academic researcher from Pennsylvania Hospital. The author has contributed to research in topics: Pregnancy & Amniocentesis. The author has an hindex of 31, co-authored 73 publications receiving 6086 citations.
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Journal ArticleDOI
Maternal thyroid deficiency during pregnancy and subsequent neuropsychological development of the child.
James E. Haddow,Glenn E. Palomaki,Walter C. Allan,Josephine Williams,George J. Knight,June Gagnon,Cheryl E. O’heir,Marvin L. Mitchell,Rosalie J. Hermos,Susan E. Waisbren,James D. Faix,Robert Z. Klein +11 more
TL;DR: Undiagnosed hypothyroidism in pregnant women may adversely affect their fetuses; therefore, screening for thyroid deficiency during pregnancy may be warranted.
Journal ArticleDOI
Association between Exposure to Environmental Tobacco Smoke and Exacerbations of Asthma in Children
Barbara A. Chilmonczyk,Luis M. Salmun,Keith N. Megathlin,Louis M. Neveux,Glenn E. Palomaki,George J. Knight,Andrea Pulkkinen,James E. Haddow +7 more
TL;DR: Measurement of urine cotinine levels provides further evidence of an association between exposure to environmental tobacco smoke and pulmonary morbidity in children with asthma and emphasizes the need for systematic, persistent efforts to stop the exposure of children with Asthma to environmental Tobacco smoke.
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Prenatal screening for Down's syndrome with use of maternal serum markers.
James E. Haddow,Glenn E. Palomaki,George J. Knight,Josephine Williams,Andrea Pulkkinen,Jacob A. Canick,Devereux N. Saller,Gail Barsel Bowers +7 more
TL;DR: This data indicates that serum levels of unconjugated estriol and chorionic gonadotropin, which are abnormally low and abnormally high, respectively, in women carrying fetuses affected by Down's syndrome can be detected by measuring maternal serum alpha-fetoprotein during the second trimester in the general population of pregnant women.
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Maternal Serum Screening for Down Syndrome in Early Pregnancy
Nicholas J. Wald,Howard Cuckle,J. W. Densem,Kiran Nanchahal,Patrick Royston,Tim Chard,James E. Haddow,George J. Knight,Glenn E. Palomaki,Jacob A. Canick +9 more
TL;DR: The new screening method would detect over 60% of affected pregnancies, more than double that achievable with the same amniocentesis rate in existing programmes, and could reduce the number of children born with Down's syndrome in the United Kingdom from about 900 a year to about 350 a year.
Journal ArticleDOI
Screening of Maternal Serum for Fetal Down's Syndrome in the First Trimester
James E. Haddow,Glenn E. Palomaki,George J. Knight,Josephine Williams,Wayne A. Miller,Anthony L. Johnson +5 more
TL;DR: Screening for Down's syndrome in the first trimester is feasible, with use of measurements of pregnancy-associated protein A and either hCG or its free beta subunit in maternal serum.