Results: 8

Cobalt Chloride as a Hypoxia Mimicking Agent Induced HIF-1α and mTOR Expressions of Human Umbilical Cord Mesenchymal Stem Cells

ABSTRACT Objective: To assess the effects of cobalt chloride (CoCl2) as a hypoxia mimicking agent on human umbilical cord mesenchymal stem cells (hUCMSCs) expression of HIF-1α and mTOR for use in regenerative dentistry. Material and Methods: Human umbilical cord mesenchymal stem cells were isolate...

Histological analysis of the intestinal wall of newborn rats submitted to hypoxia and reoxygenation to evaluate the protective effect of N-Acetylcysteine

Acta cir. bras; 35 (4), 2020
Abstract Purpose To evaluate the effect of N-Acetylcysteine (NAC) in newborn rats submitted to hypoxia and reoxygenation (H/R) conditions in an experimental model of necrotizing enterocolitis. Methods Eight pregnant rats and their 70 cubs were used (5 groups) and exposed to H/R conditions and receive...

Efectos morfológicos y mecánicos en ratas Sprague Dawley sometidas a ciclos de hipoxia

Int. j. morphol; 37 (3), 2019
Periodos extensos de hipoxia provocan cambios adaptativos que permiten responder a las demandas impuestas por el ambiente. Sin embargo, existen casos donde esta exposición es intermitente, como es el caso de los trabajadores en zonas andinas. El objetivo de esta comunicación fue comprobar los efectos m...

Temporal profile of intestinal tissue expression of intestinal fatty acid-binding protein in a rat model of necrotizing enterocolitis

Clinics; 71 (7), 2016
OBJECTIVES: Necrotizing enterocolitis is a severe multifactorial intestinal disorder that primarily affects preterm newborns, causing 20-40% mortality and morbidity. Intestinal fatty acid-binding protein has been reported to be a biomarker for the detection of intestinal injuries. Our aim was to assess i...

Hipoxemia pre-operatoria: indicador de complicaciones pulmonares post-operatorias en cirugías de abdomen superior

Las Cirugias de Abdomen Superior (CAS) desencadenan cambios importantes en la función pulmonar, fundamentalmente descenso de la capacidad vital y capacidad residual funcional, alteraciones que son paralelas a la disminución de la presión arterial de oxigeno (PaO2), pudiendo ser tan marcados que ocasio...

Factores Críticos de Viabilidad Cerebral
Critical Factors of Brain Viability

Rev. mex. anestesiol; 16 (2), 1993
El encéfalo es el órgano más vulnerable a la anoxia debido a que cuenta con bajas reservas de sustratos para el metabolismo anaeróbico. Sin embargo, bajo circunstancias especiales, como la hipotermia, el período de viabilidad de la función neuronal puede ser mayor. En este trabajo se revisan brevem...

Angiossarcoma primário de atrio direito com forame oval pérvio e hipoxemia severa

Arq. bras. cardiol; 59 (6), 1992
A 19 years-old-female with a primary right atrial angiosarcoma partially obstructing the tricuspid valva, developed severe hypoxemia due to right-to-left shunting through a patent foramen ovale. This is the first report of such clinical situation with this type of tumor. A complete resection of the tumor...

Açäo da cardioplegia na proteçäo miocárdica: estudo experimental através das réplicas de criofraturas
The cardioplegic action in the myocardial protection: experimental study throught freeze fraction replications

Foi avaliado, experimentalmente, o grupo de proteçäo miocárdica oferecido por soluçöes cardioplégicas e hipotermia, à anóxia induzida pela interrupçäo do fluxo sangüineo coronário em 20 cäes. A isquemia miocárdica foi obtida através do pinçamento da aorta ascendente por 60 minutos, após ...