SUMMARY: The expression of aquaporin-1 (AQP1) in choroid plexus and aquaporin-4 (AQP4) in astrocyte of the hippocampal formation (HF) was studied in the rat to determine the role of AQP1 and AQP4 in the pathophysiology of systemic hyponatremia (SH). SH was induced by coadministration of dextrose solution...
ABSTRACT Background: Increased concentrations of serum proteins in cerebrospinal fluid (CSF) are interpreted as blood-CSF barrier dysfunction. Frequently used interpretations such as barrier leakage, disruption or breakdown contradict CSF protein data, which suggest a reduced CSF flow rate as the cause...
Abstract Purpose: To analyze the serum levels of nitric oxide and correlate them with the levels of thiobarbituric acid reactive substances (TBARS) in liver, brain and spinal cord of animals using L-NAME and treated with hydroxyurea. Methods: Eighteen male albino Wistar rats were divided into three gro...
Anemia de Células Falciformes/tratamiento farmacológico,
Anemia de Células Falciformes/metabolismo,
Anemia de Células Falciformes/fisiopatología,
Encéfalo/metabolismo,
Modelos Animales de Enfermedad,
Hidroxiurea/uso terapéutico,
Hígado/metabolismo,
NG-Nitroarginina Metil Éster,
Estrés Oxidativo/fisiología,
Ratas Wistar,
Médula Espinal/metabolismo
We investigated changes in oxidative biomarkers in brain regions such as brainstem, cerebellum, and cerebral cortex of 3-, 6-, 18-, 24-, and 30-month-old rats. We also assessed the effects of low-intensity exercise on these biomarkers in these regions of 6-, 18-, and 24-month-old rats that started exerci...
Envejecimiento/metabolismo,
Envejecimiento/fisiología,
Biomarcadores/análisis,
Encéfalo/metabolismo,
Fémur/química,
Fémur/diagnóstico por imagen,
Peroxidación de Lípido,
Peróxidos Lipídicos/análisis,
Oxidación-Reducción,
Estrés Oxidativo/fisiología,
Condicionamiento Físico Animal/fisiología,
Ratas Wistar
ABSTRACT Growth hormone (GH) is best known for its effect stimulating tissue and somatic growth through the regulation of cell division, regeneration and proliferation. However, GH-responsive neurons are spread over the entire central nervous system, suggesting that they have important roles in the brain...
High caloric intake promotes chronic inflammation, insulin resistance, and chronic diseases such as type-2 diabetes, which may be prevented by food restriction (FR). The effect of FR on expression of pro-inflammatory and anti-inflammatory genes in adipose tissue, liver, muscle, and brain was compared. Ma...
OBJECTIVES: This study aimed to evaluate several methods to estimate glucose consumption in the male Wister rat brain as measured by PET. METHODS: Fourteen male Wistar normoglycemic rats were studied. The input function consisted of seventeen blood samples drawn manually from the femoral artery. Glucose...
Abstract Background: To date there are no specific classification criteria for childhood-onset systemic lupus erythematosus (cSLE). This study aims to compare the performance among the American College of Rheumatology (ACR) 1997, the Systemic Lupus International Collaborating Clinics criteria (SLICC) an...
Barrera Hematoencefálica/metabolismo,
Encéfalo/metabolismo,
Modelos Teóricos,
Preparaciones Farmacéuticas/metabolismo,
Distribución Tisular/fisiología,
Aracnoides/efectos de los fármacos,
Aracnoides/metabolismo,
Transporte Biológico/efectos de los fármacos,
Transporte Biológico/fisiología,
Barrera Hematoencefálica/efectos de los fármacos,
Encéfalo/efectos de los fármacos,
Líquido Extracelular/efectos de los fármacos,
Líquido Extracelular/metabolismo,
Preparaciones Farmacéuticas/administración & dosificación,
Distribución Tisular/efectos de los fármacos
Abstract Background and objectives: Postoperative cognitive dysfunction is common after cardiac surgery. Adequate cerebral perfusion is essential and near infrared spectroscopy (NIRS) can measure cerebral oxygenation. Aim of this study is to compare incidence of early and late postoperative cognitive dy...
Encéfalo/metabolismo,
Disfunción Cognitiva/epidemiología,
Disfunción Cognitiva/terapia,
Puente de Arteria Coronaria,
Incidencia,
Persona de Mediana Edad,
Monitoreo Intraoperatorio,
Oxígeno/metabolismo,
Proyectos Piloto,
Complicaciones Posoperatorias/epidemiología,
Complicaciones Posoperatorias/terapia,
Espectroscopía Infrarroja Corta,
Factores de Tiempo