id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-343712-gn7fw891	Taglauer, Elizabeth	Consistent localization of SARS-CoV-2 spike glycoprotein and ACE2 over TMPRSS2 predominance in placental villi of 15 COVID-19 positive maternal-fetal dyads	2020-08-25		.txt	text/plain	1497	86	41	title: Consistent localization of SARS-CoV-2 spike glycoprotein and ACE2 over TMPRSS2 predominance in placental villi of 15 COVID-19 positive maternal-fetal dyads Parenchymal changes of placentas from COVID-19 infected mothers have been reported by several groups, but the localization and relative abundance of SARS-CoV-2 viral proteins and cellular entry machinery has not been fully characterized within larger placental tissue cohorts. Overall this study provides an important basis for the ongoing evaluation of SARS-CoV-2 physiology in pregnancy and highlights the importance of the placenta as a key source of primary human tissue for ongoing diagnostic and therapeutic research efforts to reduce the global burden of COVID-19. While ACE2 was consistently found in the sTB layer of all tissues 148 surveyed (COVID-19 Maternal and controls), TMPRSS2 expression was absent in both groups of 149 placentas (Fig. 3 A,B) . Vertical transmission of COVID-19: SARS-CoV-2 RNA on the fetal side of 301 the placenta in pregnancies with COVID-19 positive mothers and neonates at birth	./cache/cord-343712-gn7fw891.txt	./txt/cord-343712-gn7fw891.txt