There are several reports on unfavourable effects of metabolic cage housing on animal welfare mainly due to the characteristic structures of these cages such as single housing and grid flooring. This study was aimed to compare the effects of long-term metabolic cage housing and conventional housing (normal grouped housing in standard cages) on the anxiety/depression-like behaviours in male rats. Anxiety/depression-related behaviours were evaluated by use of forced swimming test and open field test. Swimming and climbing were significantly lower and immobility duration higher in the metabolic cage group. In the open field test, total distance, mean velocity, time spent in the central area, zone transition, grooming, and rearing scores were significantly lower in the metabolic cage. Moreover, serum corticosterone level was higher in the metabolic cage group. The results of the study indicate that long-term metabolic cage housing may cause an increase in the anxiety- and depression-related behaviours in male rats.
Abstract:Background: It is investigated whether preoperative allopurinol administration protects lung injury induced by cardiopulmonary bypass (CPB). Methods: Sixty patients with coronary artery disease who need elective coronary artery bypass grafting operations by using CPB were taken into this study. They were divided into two groups; control and allopurinol. Allopurinol (300 mg/day) was administered to the latter group during the preoperative period of 5 days. Standard CPB procedures were used in all cases. Blood was sampled for TNF-alpha, IL-6, IL-8, IL-10 before anesthesia (T0), after anesthesia and before skin incision (T1), before CPB (T2), after aortic declamping (T3), at the end of CPB (T4), 6 hours after operation (T5), 12 hours after operation (T6), and 24 hours after operation (T7). Pulmonary function test (PFT) was performed before and following the 6th day of operation. Results: TNF-alpha, IL-6, IL-8 increased in both groups at T3, T4, T5 and T6 compared to control (p<0.05). TNF-alpha, IL-6, and IL-8 levels were lower in group A at T3, T4, T5 and T6 (p<0.05). Creatinin phosphokinase (CK) levels were lower in group A at T6 (p<0.05). CK-MB levels were lower in group A than in group C (p<0.05). Pulmonary function test (PFT) did not yield any differences between the groups. Conclusions: Preoperative allopurinol administration decreases the infl ammation and myocardial injury according to biochemical markers of ischemia reperfusion injury. However, this biochemical success does not rebound to PFT (Tab. 5, Ref. 15). Full Text in PDF www.elis.sk.
Alzheimer's disease (AD) is accepted as a form of progressive and irreversible dementia. It is known that cholinergic systems are commonly affected in AD. Neurokinin 3 receptor (NK3R) is involved in learning and memory related processes. Activation of NK3R is known to facilitate the release of many neurotransmitters such as acetylcholine (Ach), dopamine (DA), noradrenaline (NA). Based on this information, hypothesis of the study that NK3R agonism can have positive effects on behavioral and learning parameters through cholinergic and catecholaminergic mechanisms. The aim of this study was to investigate the effects of NK3R agonist senktide on cognitive and neurobehavioral mechanisms in model of AD.50 adult male Wistar albino rats were obtained; Control, AD, Control+NK3R agonist, AD+NK3R agonist, AD+NK3R agonist+antagonist groups. AD model was established by administering Aβ1-42 intracerebroventricularly. Following NK3R agonist+antagonist injections, open field (OF) and Morris water maze (MWM) were applied for behavioral and learning parameters. Hippocampus and cortex tissues were extracted. Analysis of cholinergic mechanisms from these tissues were performed by ELISA method.Group-time effect was significant in OF (p<0.05). Distance moved parameter was significant between groups in MWM (p<0.05). There was a significant difference between groups in AChE and ChAT levels (p<0.05). DA concentrations of brainstem samples were significant (p<0.05). There was no significant difference in NA concentration (p>0.05). NK3R agonists were found to be effective in improving cognitive functions in rats with AD pathology. It has been observed that positive effects on learning and memory performances can be mediated by cholinergic mechanisms.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.