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1.
Proc (Bayl Univ Med Cent) ; 36(5): 572-577, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37614853

RESUMO

Background: Preeclampsia (PreE), the de novo onset of hypertension and proteinuria at 20 weeks of gestation, is a leading cause of maternal and fetal morbidity and mortality. This study compared inflammatory biomarkers in PreE and normal pregnancies using paired samples of mothers and neonates. Methods: Twenty normal pregnant and 27 PreE patients were monitored for biomarkers, neonatal outcomes, and placental morphologies. Fetal and maternal serum levels of vascular endothelial growth factor (VEGF), placental growth factor (PlGF), soluble endoglin (sENG), and soluble fms-like tyrosine kinase-1 (sFLT-1) were measured by enzyme-linked immunosorbent assay. Results: Placental thickness was 25 mm in early PreE subjects compared to 32 mm in late PreE subjects (P < 0.05). Placental volume was 296 cm3 in early PreE compared to 393 cm3 in late PreE (P < 0.05). The average hospital stay for PreE babies was longer (20 ± 5 days) compared to babies from normal pregnancies (2 ± 1 days; P < 0.05). PreE babies had a lower Ponderal index (2.28 ± 0.3) than those from normal pregnancies (2.95 ± 0.2; P < 0.05). sENG and sFLT-1 had cord values like the maternal values, while VEGF and PlGF did not. Conclusion: PreE alters the intrauterine environment by activating chemical mediators that result in maternal and fetal complications.

2.
World J Pediatr ; 14(3): 269-273, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29536341

RESUMO

BACKGROUND: Coagulase-negative staphylococci (CoNS) are the most common cause of late-onset sepsis in the neonatal intensive care unit (NICU) and usually require vancomycin treatment. Our objective was to determine whether CoNS are associated with neonatal morbidity and mortality. METHODS: This was a retrospective cohort study of very-low-birth-weight (VLBW, ≤ 1500 g) infants from 1989 to 2015. Exclusion criteria were major congenital anomaly or death within 72 h. CoNS was considered a pathogen if recovered from ≥ 2 cultures, or 1 culture if treated for ≥ 5 days and signs of sepsis were present. Logistic regression was used to examine factors associated with morbidity and mortality. RESULTS: Of 2242 VLBW infants, 285 (12.7%) had late-onset sepsis. CoNS (125, 44%), Staphylococcus aureus (52, 18%), and Escherichia coli (36, 13%) were the most commonly recovered organisms. In multivariate analysis, CoNS sepsis was not associated with mortality [OR 0.6 (95% CI 0.2-2.6)), but sepsis with other organisms was [OR 4.5 (95% CI 2.6-8.0)]. CoNS sepsis was associated with longer hospitalization but not risk for bronchopulmonary dysplasia, intraventricular hemorrhage, or retinopathy of prematurity. CONCLUSION: CoNS sepsis was not associated with mortality or morbidities other than length of stay. These findings support vancomycin-reduction strategies in the NICU.


Assuntos
Bacteriemia/diagnóstico , Bacteriemia/epidemiologia , Mortalidade Hospitalar , Recém-Nascido de muito Baixo Peso , Unidades de Terapia Intensiva Neonatal , Staphylococcus/isolamento & purificação , Bacteriemia/tratamento farmacológico , Coagulase/metabolismo , Estudos de Coortes , Intervalos de Confiança , Feminino , Humanos , Recém-Nascido , Modelos Logísticos , Masculino , Morbidade , Estudos Retrospectivos , Infecções Estafilocócicas/diagnóstico , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/epidemiologia , Staphylococcus/classificação , Staphylococcus/enzimologia , Análise de Sobrevida
3.
J Investig Med ; 66(4): 728-732, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29170244

RESUMO

The interaction between pre-eclampsia and diabetes mellitus (DM) is far from being completely understood. In this study, we compared normal pregnancies with those complicated with pre-eclampsia, gestational DM, and/or pre-existing diabetes to assess the effects of hyperglycemia on placental development. AnInstitutional Review Board (IRB) approved retrospective cross-sectional study with 621 subjects was performed. Statistical analysis was performed using Duncan's post hoc test and analysis of variance. Regardless of diabetes status, patients with pre-eclampsia delivered prematurely. Patients in the group with pre-eclampsia and pregestational diabetes delivered much earlier, at 35.0±0.4 weeks, when compared with the patients that had pre-eclampsia with gestational diabetes and pre-eclampsia with no diabetes (*P<0.05 for each). Additionally, patients with pre-existing diabetes who developed pre-eclampsia delivered smaller babies than those with pre-existing diabetes without pre-eclampsia (1.00±0.03, P<0.05 for each). Pre-existing diabetes with added insult of pre-eclampsia led to fetal growth restriction. This outcome validates the understanding that elevated glucose earlier in pregnancy alters placentogenesis and leads to fetal growth restriction.


Assuntos
Diabetes Gestacional/patologia , Pré-Eclâmpsia/patologia , Adulto , Peso ao Nascer , Estudos Transversais , Diabetes Gestacional/fisiopatologia , Diástole , Feminino , Idade Gestacional , Humanos , Pré-Eclâmpsia/fisiopatologia , Gravidez , Estudos Retrospectivos , Sístole
4.
Proc (Bayl Univ Med Cent) ; 29(4): 387-388, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27695169

RESUMO

Bilateral congenital pseudoarthrosis of the clavicles is extremely rare. We report a case of this entity presenting in the neonatal period. We highlight the importance of the differential diagnosis when clavicular fracture shows no evidence of healing or occurs bilaterally.

5.
BBA Clin ; 6: 25-30, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27335802

RESUMO

OBJECTIVE: Preeclampsia (preE) has a significant link to alterations of placental function leading to stress and apoptotic signaling, which pass the placental barrier and leave persistent defect in the circulation of the offspring. We assessed apoptotic signaling in placentas and umbilical cords from patients with and without preE. METHODS: We collected placental and cord tissues from 27 normal pregnant (NP) women and 20 preE consenting patients after delivery in an IRB approved prospective study. p38 mitogen-activated protein kinase (p38 MAPK) phosphorylation, pro-apoptotic Bcl-2-associated X (Bax), anti-apoptotic Bcl-2, caspase-9, and pro-inflammatory cyclooxygenase-2 (Cox-2) were evaluated by western blot and immunohistochemistry. Comparisons were performed using Student's t-test. RESULTS: p38 phosphorylation (Placenta: 1.5 fold, Cord: 1.7 fold), ratio of Bax/Bcl-2 (Placenta: 1.7 fold, Cord: 2.2 fold), caspase-9 (Placenta: 1.5 fold, Cord: 1.8 fold) and Cox-2 (Placenta: 2.5 fold, Cord: 2.3 fold) were up-regulated (p < 0.05) in preE compared to NP patients. Average hospital stays for preE babies were longer than NP babies. No complications were reported for NP babies; however, all of preE babies had multiple complications. CONCLUSIONS: Apoptotic and stress signaling are augmented in preE placenta and cord tissue that alter the intrauterine environment and activates the detrimental signaling that is transported to fetus.

6.
Am J Perinatol ; 33(14): 1337-1356, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27159203

RESUMO

Background Normal pregnancy relies on a careful balance between immune tolerance and suppression. It is known that strict regulation of maternal immune function, in addition to components of inflammation, is paramount to successful pregnancy, and any imbalance between proinflammatory and anti-inflammatory cytokines and chemokines can lead to aberrant inflammation, often seen in complicated pregnancies. Inflammation in complicated pregnancies is directly associated with increased mortality and morbidity of the mother and offspring. Aberrant inflammatory reactions in complicated pregnancies often lead to adverse outcomes, such as spontaneous abortion, preterm labor, intrauterine growth restriction, and fetal demise. The role of inflammation in different stages of normal pregnancy is reviewed, compared, and contrasted with aberrant inflammation in complicated pregnancies. The complications addressed are preterm labor, pregnancy loss, infection, preeclampsia, maternal obesity, gestational diabetes mellitus, autoimmune diseases, and inflammatory bowel disease. Aim This article examines the role of various inflammatory factors contributing to aberrant inflammation in complicated pregnancies. By understanding the aberrant inflammatory process in complicated pregnancies, novel diagnostic tools and therapeutic interventions for modulating it appropriately can be identified.


Assuntos
Quimiocinas/metabolismo , Hormônios/metabolismo , Inflamação/fisiopatologia , Complicações na Gravidez/imunologia , Receptores Toll-Like/metabolismo , Diabetes Gestacional/imunologia , Feminino , Retardo do Crescimento Fetal/imunologia , Humanos , Imunidade Celular , Imunidade Inata , Recém-Nascido , Obesidade/imunologia , Pré-Eclâmpsia/imunologia , Gravidez , Resultado da Gravidez , Nascimento Prematuro/imunologia
7.
AJP Rep ; 6(1): e42-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26929869

RESUMO

Introduction Preeclampsia (preE) is pregnancy-induced hypertension affecting a significant proportion of pregnant women worldwide and can cause detrimental effects in the mother and newborn. Some of the effects in the newborn include neonatal thrombocytopenia. Pertaining specifically to neonatal thrombocytopenia, several questions remain unanswered. Discussion According to the current literature, neonatal thrombocytopenia due to maternal preE is highly prevalent in the general population and the incidence is reported to be around 30% worldwide. This review gives an insight into the syndrome and summarizes the possible pathological mechanisms, the diagnostic approach, complications, and therapeutic interventions of neonatal thrombocytopenia. It also identifies the involvement of other cell lines, apart from platelets in the newborns. Furthermore, we suggest a future prospective study to investigate the pathogenesis of preE and plan a study involving animal models to come up with a possible therapeutic intervention to prevent preE and its various consequences in neonates.

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