Morphological and functional aspects of acute kidney injury after fetal programing in the offspring of diabetic rats.

OBJECTIVE: To evaluate the effects of folic acid (FA)-induced renal failure in young offspring of diabetic mothers. METHODS: The offspring of streptozotocin-induced diabetic dams were divided into four groups: CC (controls receiving vehicle); DC (diabetics receiving vehicle); CA (controls receiving FA solution, 250 mg/kg) and DA (diabetics receiving FA solution, 250 mg/kg). Renal function tests and morphometry results were analyzed. RESULTS: An increase in creatinine and urea levels was observed in CA and DA groups at two and five months. FA administration caused a significant reduction in the number of glomeruli in the offspring of diabetic dams. The diabetes group treated with FA had fewer glomeruli compared to controls at two and five months. FA caused an increase in the area of the urinary space both in controls and offspring of diabetic dams at two and five months. The number of glomeruli and area of the urinary space at two months were negatively correlated. CONCLUSIONS: Fetal programing promotes remarkable changes in kidney morphology and function in offspring. We suggest that the morphological changes in the kidneys are more pronounced when fetal programing is associated with newly acquired diseases, e.g. renal failure induced by FA.

Influence of inflammatory infiltrate and alterations of the blood flow in the etiopathogenesis of the basement membrane of the amniotic epithelium (BMAE) thickening in patients with hypertensive syndromes in pregnancy.

PURPOSE: To evaluate the mechanisms involved in the etiology of the basement membrane of the amniotic epithelium (BMAE) thickening in patients with hypertensive syndromes in pregnancy (HSP). METHODS: Eighty placentas from patients presenting HSP were morphologically examined in staining through hematoxylin-eosin and periodic acid Schiff method. Placental morphological changes were classified into: diagnostic of low placental blood flow, characterized by a larger number of syncytial knots, fibrin deposits, and a larger number of vessels in terminal villi; and placentas with inflammation that presented inflammatory infiltrate in membranes or placental villi. Measurements of thickness were made with an automatic image analyzing software. RESULTS: BMAE thickness was higher in the group with HSP, particularly in cases with gestational hypertension and pre-eclampsia superimposed on chronic hypertension (PSCH). In the placentas of the HSP group, the thickness of the BMAE was higher in cases with inflammatory infiltrate. There was a positive and significant correlation between the BMAE thickness and the thickness of the amniotic epithelium. The BMAE thickening areas were associated with hyperplasia and edema of the amniotic epithelium. CONCLUSIONS: BMAE thickening in cases with HSP is more evident when there is an interaction between the severe effects of uteroplacental hypoxia, with consequent death and remodelling of the amniotic epithelium cells, as in PSCH, with local inflammatory processes that make this thickening much more evident.

[Influence of maternal and fetal intercurrences on the different degrees of chorioamnionitis]. / Influência das intercorrências maternas e fetais nos diferentes graus de corioamnionite.

PURPOSE: To evaluate the influence of maternal complications, prematurity, fetal anthropometric parameters and conditions of the newborn on different degrees of chorioamnionitis. METHODS: We analyzed 90 placentas from deliveries performed at the General Hospital of Triângulo Mineiro Federal University with a diagnosis of inflammation in the anatomopathological exams. We reviewed the medical records to obtain relevant maternal and fetal information. The infections were classified as grade I - deciduitis; grade II - chorioamnionitis; grade III - chorioamnionitis and vasculitis; grade IV - neonatal sepsis and grade V - fetal death and pneumonitis. RESULTS: Among the pregnant women analyzed, 50.0% had no complications, 15.0% had ruptured membranes, 15.0% urinary tract infection, 7.5% hypertensive disorders, 7.5% transvaginal infection, 5.0% hematogenous infection, and 11.1% other complications. More than a half the neonates were males and 72.2% were born at term. Analysis of the degree of chorioamnionitis showed that 56.7% had grade I, 22.2% grade II, 4.4% grade III, 10.0% grade IV, and 6.7% grade V. Data were analyzed statistically by the Χ2 test for qualitative variables and by the Spearman test for correlation analysis. The higher grades of chorioamnionitis were observed in cases of maternal complications. We observed negative correlations between all parameters and the degree of fetal chorioamnionitis, which were significant regarding weight, length, thoracic circumference and Apgar score in the first and fifth minutes. CONCLUSIONS: The different patterns of chorioamnionitis were related to different maternal and fetal clinical features, affecting the life conditions of the newborn and the severity of morphological lesions found in stillbirths.

Influência das intercorrências maternas e fetais nos diferentes graus de corioamnionite / Influence of maternal and fetal intercurrences on the different degrees of chorioamnionitis

OBJETIVO: Avaliar a influência das complicações maternas, da prematuridade, dos parâmetros antropométricos do feto e de condições do recém-nascido nos diferentes graus de corioamnionite. MÉTODOS: Foram analisadas 90 placentas provenientes de partos realizados no Hospital de Clinicas da Universidade Federal do Triângulo Mineiro com diagnóstico de inflamação no exame anatomopatológico. A revisão dos prontuários foi realizada para adquirir informações materno-fetais relevantes. A infecção foi classificada em: grau I - deciduíte; grau II - corioamnionite; grau III - corioamnionite e vasculite; grau IV - sepse neonatal; e grau V - morte fetal e pneumonite. RESULTADOS: Dentre as gestantes analisadas, 50,0% não apresentaram intercorrências, 15,0% apresentaram amniorrexe prematura, 15,0% infecção do trato urinário, 7,5% síndromes hipertensivas, 7,5% infecção transvaginal, 5,0% infecção hematogênica e 11,1% outras complicações. Mais da metade dos neonatos eram do sexo masculino e 72,2% a termo. Analisando o grau de corioamnionite, 56,7% apresentaram o grau I, 22,2 % grau II, 4,4% grau III, 10,0% grau IV e 6,7% grau V. Na análise estatística foi utilizado o Teste Χ2 para a análise de variáveis qualitativas e o Teste de Spearman para a análise das correlações. Os graus mais elevados de corioamnionite foram observados nos casos que apresentaram intercorrências maternas. Foram observadas correlações negativas entre todos os parâmetros fetais e o grau de corioamnionite, sendo significativa em relação ao peso, ao comprimento, à circunferência torácica e ao Apgar no primeiro e quinto minuto. CONCLUSÕES: Os diferentes padrões de corioamnionite estão relacionados a diferentes manifestações clínicas materno-fetais, influenciando nas condições de vida do recém-nascido e na gravidade de lesões morfológicas encontradas em natimortos.

PURPOSE: To evaluate the influence of maternal complications, prematurity, fetal anthropometric parameters and conditions of the newborn on different degrees of chorioamnionitis. METHODS: We analyzed 90 placentas from deliveries performed at the General Hospital of Triângulo Mineiro Federal University with a diagnosis of inflammation in the anatomopathological exams. We reviewed the medical records to obtain relevant maternal and fetal information. The infections were classified as grade I - deciduitis; grade II - chorioamnionitis; grade III - chorioamnionitis and vasculitis; grade IV - neonatal sepsis and grade V - fetal death and pneumonitis. RESULTS: Among the pregnant women analyzed, 50.0% had no complications, 15.0% had ruptured membranes, 15.0% urinary tract infection, 7.5% hypertensive disorders, 7.5% transvaginal infection, 5.0% hematogenous infection, and 11.1% other complications. More than a half the neonates were males and 72.2% were born at term. Analysis of the degree of chorioamnionitis showed that 56.7% had grade I, 22.2% grade II, 4.4% grade III, 10.0% grade IV, and 6.7% grade V. Data were analyzed statistically by the Χ2 test for qualitative variables and by the Spearman test for correlation analysis. The higher grades of chorioamnionitis were observed in cases of maternal complications. We observed negative correlations between all parameters and the degree of fetal chorioamnionitis, which were significant regarding weight, length, thoracic circumference and Apgar score in the first and fifth minutes. CONCLUSIONS: The different patterns of chorioamnionitis were related to different maternal and fetal clinical features, affecting the life conditions of the newborn and the severity of morphological lesions found in stillbirths.