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Immunological distribution of the placental lactogene and IGF-1 receptor on free-chorionic villi of the newborns small for gestational age placentae
Prieto, Ruth; Matamala, Fernando; Rojas, Mariana.
  • Prieto, Ruth; Universidad de La Frontera. Faculty of Medicine. Pediatric Department. Temuco. CL
  • Matamala, Fernando; Universidad de La Frontera. Faculty of Medicine. Anatomy Department. CL
  • Rojas, Mariana; Universidad de Chile. Faculty of Medicine. Anatomy and Developmental Biology Program. Santiago. CL
Int. j. morphol ; 26(4): 1029-1033, Dec. 2008. ilus, tab
Article in English | LILACS | ID: lil-532940
ABSTRACT
The aim of this study was observe differences in the immunological distribution of the placental lactogene and IGF-1 receptor on free-chorionic villi, between studied groups and to relate the neonatal diagnosis of PEG with morphometric and immunohystochemical characteristics of the placenta. A total of, twelve placentas from AEG newborn and twelve from PEG newborn were obtained from the Maternity Ward of Temuco, Chile. H&E, Alcian blue and Masson's trichromic stains, as well as Hematoxilyn-PAS. In the immunoperoxidase technique, were used 1) placental lactogen (polyclonal, dilution 1200, NCL-PLP, Novocastra) 2) Insuline-1 like growth factor (monoclonal, dilution 1200, NCL-GHR, Novocastra). Differences between PEG and AEG placentae in the immnunostaing for placental lactogen and IGF-1 receptor in the sincitial throphoblast were not observed.
RESUMEN
El objetivo de este estudio fue observar diferencias en la distribución del lactogeno placentario y receptor del factor de crecimiento similar a la insulina, entre placentas de recién nacidos normales para la edad gestacional AEG y pequeños para la edad gestacional PEG. Un total de 12 placentas de recién nacidos AEG y 12 PEG obtenidas de la maternidad del Hospital de Temuco, Chile fueron procesadas con técnicas histológicas H&E, azul de Alcián y un método de tinción tricrómico. La técnica de inmunoperoxidasa utilizada fue 1) lactogeno placentario (pohclonal, dilución 1200, NCL-PLP, Novocastra) 2) Factor de crecimiento similar a la insulina (monoclonal, dilución 1200, NCL-GHR, Novocastra). No se observaron diferencias en la distribución de lactogeno placentario ni factor de crecimiento similar a la insulina entre las placentas provenientes de recién nacidos pequeños para la edad gestacional y adecuados para la edad gestacional.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Placental Lactogen / Chorionic Villi / Receptor, IGF Type 1 Limits: Humans / Infant, Newborn Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2008 Type: Article Affiliation country: Chile Institution/Affiliation country: Universidad de Chile/CL / Universidad de La Frontera/CL

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Full text: Available Index: LILACS (Americas) Main subject: Placental Lactogen / Chorionic Villi / Receptor, IGF Type 1 Limits: Humans / Infant, Newborn Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2008 Type: Article Affiliation country: Chile Institution/Affiliation country: Universidad de Chile/CL / Universidad de La Frontera/CL