the acceptability of hearing aids in people with presbyacusis has been improved but assessment of whether there is a need for more counseling to increase the number of regular hearing-aid users seems to be important. the aim of this study was to determine if the hearing aid was worn regularly and over a long period of time in people with presbyacusis. a questionnaire survey of patients with pre...

the effect of endogenous serotonin on long-term potentiation (ltp) in region cai was studied by blocking 5-ht2 receptors with ketanserin in rat hippocampal slices. such a block significantly en-hanced long-term potentiation of the cai population spike induced by high frequency stimulation of the schaffer collateral/ commissural pathway. this implies that serotonin acts on 5-ht2 receptors in cai...

introduction: to study the effect of gallic acid (ga) on hippocampal long-term potentiation (ltp) and histological changes in animal model of alzheimer disease (ad) induced by betaamyloid (aβ). methods: sixty-four adult male wistar rats (300±20 g) were divided into 8 groups: 1) control (cont); 2) ad; 3) sham; 4-7) ad+ga (50, 100, and 200 mg/kg for 10 days, orally) or vehicle, 8) cont+ga100, aβ ...

achillea millefolium belonging to the astreaceae family is an endangered medicinal plant of jordan and of its neighboring countries. as an alternative to seed propagation, an efficient micropropagation of a. millefolium and its subsequent rooting were developed as an option for its in vitro conservation. a maximum of 5.9 shoots per microshoot were obtained on murashige and skoog agar medium sup...

Introduction:The hippocampus is one for the major centers of learning and memory. Role of the opioid system has been investigated and on the other hand receptors related to this system such as mu-opioid receptors (MOR) are extended in the hippocampus. In this study the effect of Naloxone administration as a mu opioid receptor antagonist on passive avoidance memory in adult male rats was i...

Centella asiatica extract on cognition and hippocampal pathology of mild chronic cerebral hypoperfusion (CCH) that was induced by permanent right common carotid artery occlusion (RCO) in rats. Materials and Methods: Sixty-four male Sprague-Dawley rats were randomly divided into four groups of Sham-veh, Sham-C. asiatica, RCO-veh and RCO-C. asiatica, which were further divided into short-term and...