Results: 10

Determination of the relationship among cell proliferation, metabolic activity and stage of pregnancy by AgNORs as markers in bovine placenta

Int. j. morphol; 39 (5), 2021
SUMMARY: Nucleolus Organizer Regions (NORs) are defined as nucleolar components containing argyrophilic proteins selectively stained by silver methods (AgNORs). Several investigations have shown the AgNOR quantity and area represent a valuable parameter of cell kinetics, since they reflect the level of a...

Expression of ADAMTS13 and PCNA in the placentas of gestational diabetic mothers

Int. j. morphol; 39 (1), 2021
SUMMARY: GDM is linked with overexpression of inflammatory cytokines and increased oxidative stress, leading to endothelial dysfunction and vascular disorder. Weaimed to examine the expression of ADAMTS13 and PCNA in the placentas of gestational diabetes mellitus (GDM) patients to investigate the effects...

Effects of vitamin D-induced supernatant of placental explants from preeclamptic women on oxidative stress and nitric oxide bioavailability in human umbilical vein endothelial cells

Braz. j. med. biol. res; 54 (8), 2021
The study evaluated the effect of the supernatant of placental explants from preeclamptic (PE) and normotensive (NT) pregnant women after tissue treatment with or without vitamin D (VD) on oxidative stress and nitric oxide (NO) bioavailability in human umbilical vein endothelial cells (HUVEC). Placental ...

Expresión de calreticulina en placenta canina

Int. j. morphol; 37 (4), 2019
La placenta es un anexo embrionario de los mamíferos que tiene por función principal el intercambio de nutrientes y gases y proteger al concepto de un potencial daño inmune provocado por diferencias alogénicas en los Complejos Principales de Histocompatibilidad paternos. Se han descrito diversas prot...

Miocardiopatía hipertrófica en un recién nacido pretérmino con madre trasplantada renal

Arch. argent. pediatr; 116 (6), 2018
La miocardiopatía hipertrófica en el recién nacido es una entidad poco frecuente y de etiología heterogénea. Se han descrito formas transitorias en hijos de madres con diabetes gestacional y en recién nacidos pretérminos expuestos a corticoides tanto prenatal como posnatalmente. Se presenta un cas...

Expression of endothelin-1 and Ki-67 in normotensive and severe preeclamptic placentas

Int. j. morphol; 36 (1), 2018
SUMMARY: Severe preeclampsia (HELLP syndrome) is a life-threatening pregnancy complication, usually a severe form of preeclampsia. In this study, we aimed to examine histopathologic changes and Endothelin-1 and KI-67 expression levels by immunohistochemical methods in severe preeclamptic placentas. Sever...

Histochemical study of the villous fibrinoid material in the human full-term placenta

Fibrinoid material from human placental villi was investigated employing histochemical methods. According to the present results, the fibrinoid material seems to consist of glucoproteins containing a neutral mucopolysaccharide and a protein.This protein contains arginine, tyrosine, tryptophan and cystein...

Incremento de lipidios en placentas chagasicas humanas: estudio citoquimico y bioquimico
Increase of lipids in human chagasic placentas: cytochemical and biochemical study

Se ha demostrado que el trofoblasto humano normal posee gránulos lipídicos que contienen triglicéridos y fosfolípidos cuya significación no está aún aclarada. Con el objeto de analizar el efecto que la enfermedad de Chagas induce en estas estructuras se propuso el siguiente estudio para determinar...

Influência do substrato succinato e do cofator difosfato de adenosina sobre o consumo de oxigênio pelas mitocôndrias da placenta humana de termo
Influence of succinate substract and of co-factor adenosine-diphosphate on oxygen consumption by full-term human placenta mitochondria

J. bras. ginecol; 96 (6), 1986
Estudou-se a influência do substrato succinato e do cofator difosfato de adenosina sobre o consumo de oxigênio pelas mitocôndrias da placenta humana de termo. O consumo de oxigênio endógeno, isto é, num meio sem substrato nem cofator, foi relativamente baixo (0,013 + ou - 0,0023 micronM O**2/min/mg...

Consumo endógeno de oxigênio pelas mitocôndrias da placenta humana de termo
Endogenon oxygen consumption by mitochondria of the human full-term placenta

J. bras. ginecol; 95 (11/12), 1985
Foi determinado o consumo de oxigênio pelas mitocondrias da placenta humana de termo na ausência de substratos exógenos. A respiraçäo endógena das mitocôndrias placentárias foi relativamente baixa (0,0126 + ou - 0,0030 micronMO2/min/mg de proteína total). Näo houve correlaçäo entre o consumo ...