Mechanisms of dysfunction of the blood-brain barrier in critically ill patients: emphasis on the role of matrix metalloproteinases.

نویسندگان

  • Hugo Rojas
  • Cristiane Ritter
  • Felipe Dal Pizzol
چکیده

This paper aims to describe the physiological basis of the blood-brain barrier components and its properties. Additionally, the particular effects of metalloproteinases and their control over the extracellular matrix and its relationship with blood-brain barrier dysfunction are discussed. Finally, the role of metalloproteinases on changes in the central nervous system in critically ill patients is discussed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

P 88: Matrix Metalloproteinases in Neuroinflammation

Matrix metalloproteinases (MMPs) are a family of neutral proteinases that are important in normal development, cellular differentiation or migration, angiogenesis, neurogenesis, wound repair, and a wide range of pathological processes such as oxidative stress and neuroinflammation. MMPs have been demonstrated to increase the permeability of the blood–brain barrier (BBB) by degrading the c...

متن کامل

P 61: MicroRNA as a Therapeutic Tool to Prevent Blood Brain Barrier Dysfunction in Neuroinflammation

Endothelial cells present in brain are unique and differ from other peripheral tissues in a number of ways, which ensures specific brain endothelial barrier properties. Endothelial dysfunction is the earliest event in the initiation of vascular damage caused by inflammation. Various microRNAs (miRNA) have been discovered in different cellular components of the blood bran barrier (BBB). miRNAs a...

متن کامل

Candesartan Attenuates Ischemic Brain Edema and Protects the Blood–Brain Barrier Integrity from Ischemia/Reperfusion Injury in Rats

Background: Angiotensin II (Ang II) has an important role on cerebral microcirculation however, its direct roles in terms of ischemic brain edema need to be clarified. This study evaluated the role of central Ang II by using candesartan, as an AT1 receptor blocker, in the brain edema formation and blood-brain barrier (BBB) disruption caused by ischemia/reperfusion (I/R) injuries in rat. Methods...

متن کامل

Effect of Nesfatin-1 on Permeability of Blood Brain Barrier, Neurological Score and Brain Edema after Traumatic Brain Injury in Male Rats: A Behavioral and Biochemical Study

Background and purpose: Traumatic brain injury (TBI) is one of the most complex diseases of the central nervous system (CNS). Nesfatin is an 82-amino acid effective polypeptide in CNS. In this study, we investigated the role of nesfatin in neuron protection in the process of diffuse concussion in rats and also its effect on the level of matrix metalloproteinase-9. Materials and methods: In thi...

متن کامل

O4: Central Nervous System Involvement in Rheumatoid Arthritis: Possible Role of Chronic Inflammation and TNF Blocker Therapy

Rheumatoid arthritis (RA) is a chronic disease, the etiology of which has yet to be clarified, which causes activation of proinflammatory pathways that bring about joint and systemic inflammation. In recent years, the pathophysiology of CNS involvement that can occur in RA has attracted a great deal of attention. Emphasis has focused on the possibility that CNS involvement occurs due to bl...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Revista Brasileira de terapia intensiva

دوره 23 2  شماره 

صفحات  -

تاریخ انتشار 2011