Protective effect of polydatin on learning and memory impairments in neonatal rats with hypoxic‐ischemic brain

نویسندگان

  • JIN SUN
  • YUNXIA QU
  • HUIMING HE
  • XIAOLEI FAN
  • YUANHUA QIN
  • WEIFENG MAO
  • LIXIN XU
چکیده

Polydatin is a key component of Polygonum cuspidatum, a herb with medical and nutritional value. The present study investigated the protective effect of polydatin against learning and memory impairment in neonatal rats with hypoxic-ischemic brain injury (HIBI). The unilateral common carotid artery ligation method was used to generate neonatal HIBI rats. Y-maze testing revealed that rats with HIBI exhibited memory impairment, while rats with HIBI treated with polydatin displayed enhanced long-term learning and memory. Of note, polydatin was found to upregulate the expression of hippocampal brain-derived neurotrophic factor (BDNF) in rats with HIBI. BDNF has a role in protecting HIBI-induced brain tissue injury and alleviating memory impairment. These findings showed that polydatin had a protective effect against learning and memory impairment in neonatal rats with HIBI and that the protective effect may be mediated through the upregulation of BDNF.

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

Brain Tissues Oxidative Damage as a Possible Mechanism of Deleterious Effects of Propylthiouracil- Induced Hypothyroidism on Learning and Memory in Neonatal and Juvenile Growth in Rats

Introduction: The role of brain tissues oxidative damage in learning and memory impairments has been well documented. It is also well known that thyroid hormones have a critical role for the brain functions. The purpose of this study was to investigate the role of brain tissues oxidative damage as a possible mechanism of deleterious effects of propylthiouracil (PTU) - induced hypothyroidism on ...

متن کامل

Auditory processing and learning/memory following erythropoietin administration in neonatally hypoxic-ischemic injured rats.

BACKGROUND Hypoxia-ischemia (HI) is a common injury arising from prematurity/complications at birth and is associated with later language, auditory, and learning impairments. OBJECTIVE To investigate the efficacy of two doses (300 or 1000 U/kg) of Erythropoietin (Epo) in protecting against neuropathological and behavioral impairments associated with HI injury in rats. METHODS HI injury (rig...

متن کامل

Protective effect of Saffron extract on morphine–induced inhibition of spatial learning and memory in rat

Introduction: It has been reported that acute administration of morphine impairs learning and memory processes in rats. Furthermore, recent studies showed that Saffron extract improved ethanol-induced impairments of learning behaviors in mice, and also prevented ethanol-induced inhibition of hippocampal long-term potentiation. It can be postulated that there are some common mechanisms respon...

متن کامل

Normobaric hyperoxia preconditioning attenuates streptozotocin - induced impairments in spatial learning

Introduction: A large body of evidence points to oxidative stress as prime candidate mediating the behavioral impairments and memory deficits in Alzheimer's disease (AD). It has been demonstrated that hyperoxia preconditioning activates complex endogenous neuroprotective mechanisms including an increase in capacity of antioxidant defence mechanisms. The aim of this study was to investigate the ...

متن کامل

Ischemic Postconditioning Attenuates Bilateral Renal Ischemia-Induced Cognitive Impairments

Background and aim: Acute kidney injury (AKI) is a frequent complication of kidney failure with high mortality which leads to brain dysfunction. The aim of this study was to investigate the possible protective effect of ischemic postconditioning (IPo) against brain dysfunction induced by bilateral renal ischemia (BRI). Materials and methods: Male Wistar rats underwent BRI, sham or IPo surgery ...

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:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014