Brain pH in focal cerebral ischemia and the protective effects of barbiturate anesthesia.
نویسندگان
چکیده
Intracellular brain pH was measured with a lipid-soluble, pH-sensitive fluorescent indicator in 16 squirrel monkeys. Eight of these were under halothane anesthesia and eight under barbiturate anesthesia. Measurements were taken before, during, and after focal incomplete ischemia. Brain pH following 3 h of cerebral focal ischemia changed from a normal value of 7.0 to 6.5 and 6.2 in animals studied under barbiturate and halothane anesthesia, respectively. Brain pH returned toward normal after flow was restored in animals under barbiturate anesthesia but continued to deteriorate in animals under halothane anesthesia.
منابع مشابه
Comparison effect of pentobarbital sodium with chloral hydrate anesthesia on post-ischemic damage in an experimental model of focal cerebral ischemia
Introduction: Anesthetic agents, blood pressure, arterial pH and blood gases have found to influence on the pathophysiology of experimental stroke. Despite, there are very few comparative studies about effects of anesthetic agents in animal model of cerebral ischemia. Therefore, in this study, we investigated the effects of chloral hydrate and pentobarbital anesthesia, as comparative study, on...
متن کاملاثر محافظتی زعفران در مقابل آسیب‌های اکسیداتیو در ایسکمی مغزی موضعی- موقتی در موش صحرایی
Background: Numerous studies have shown the protective effects of saffron against oxidative damage in a global model of cerebral ischemia, but its effects on brain edema and oxidative ischemic injury in focal ischemic stroke are not completely understood. Therefore, this study was designed to investigate the effects of saffron on brain edema, infarct volume, antioxidant enzyme activity (glutath...
متن کاملL-NAME and 7-Nitroindazole Reduces Brain Injuries in Transient Focal Cerebral Ischemia in Rat
Background: The role of nitric oxide (NO) of endothelial or neuronal origins in cerebral ischemia and reperfusion injuries are far from being settled, extending from being important to not having any role at all. Objective: To investigate the role of NO of endothelial and neuronal origins in ischemia/reperfusion injuries in focal cerebral ischemia, L-NAME, a non selective NO synthase inhibitor...
متن کاملThe Effect of Enalapril on Brain Edema and Cytokine Production Following Transient Focal Cerebral Ischemia in Mice
Introduction: Cytokines production as one of the inflammatory pathways in CNS is responsible for most brain damages following ischemia. On the other hand, during inflammation and brain ischemia, most of the renin- angiotensin components (RAS) increase locally. While it is established that blockade of RAS especially AT1 receptors has a protective effect on ischemia, the interaction of cytokines ...
متن کاملEffect of pentoxifylline on brain edema in a rat model of transient focal cerebral ischemia
Pervious studies have shown that pentoxifylline (PTX) has beneficial effects in reduction of stroke and brain trauma injuries in experimental animals. However, there is very little and controversial information about the effect of PTX on brain edema in cerebral ischemia. Therefore, the aim of this study was to determine the effects of different doses of PTX on brain edema and neurological m...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
دوره 3 4 شماره
صفحات -
تاریخ انتشار 1983