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https://www.readbyqxmd.com/read/28549027/a-minimally-invasive-stand-alone-cox-maze-procedure-is-as-effective-as-median-sternotomy-approach
#1
Matthew R Schill, Laurie A Sinn, Jason W Greenberg, Matthew C Henn, Timothy S Lancaster, Richard B Schuessler, Hersh S Maniar, Ralph J Damiano
OBJECTIVE: The Cox-Maze IV procedure has been shown to be an effective treatment for atrial fibrillation when performed concomitantly with other operations either via median sternotomy or right minithoracotomy. Few studies have compared these approaches in patients with lone atrial fibrillation. This study examined outcomes with sternotomy versus minithoracotomy in stand-alone Cox-Maze IV procedures at our institution. METHODS: Between 2002 and 2015, 195 patients underwent stand-alone biatrial Cox-Maze IV...
May 25, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28548620/baicalein-exerts-beneficial-effects-in-d-galactose-induced-aging-rats-through-attenuation-of-inflammation-and-metabolic-dysfunction
#2
Dan-Dan Duan, Ke Xin Wang, Yu-Zhi Zhou, Xue-Mei Qin, Li Gao, Guan-Hua Du
Baicalein is a flavonoid isolated from the roots of Scutellaria baicalensis Georgi. This study aimed to ascertain the effects and potential underlying mechanisms of baicalein in D-galactose induced aging rat model by integration of behavior examination, biochemical detection and 1H NMR based metabolomic approach. Our findings suggest that baicalein significantly attenuated memory decline in D-galactose induced aging model, as manifested by increasing recognition index in novel object recognition test, shortening latency time and increasing platform crossings in morris water maze test...
May 26, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28545346/gamma-linolenic-acid-ameliorated-glycation-induced-memory-impairment-in-rats
#3
Shahab Ali Khan, Ali Haider, Wajahat Mahmood, Talat Roome, Ghulam Abbas
CONTEXT: γ-Linolenic acid (GLA) is an important constituent of anti-ageing supplements. OBJECTIVE: The current study investigates the anti-ageing effect of GLA in Sprague-Dawley rats. MATERIALS AND METHODS: GLA (0.1, 0.2, 0.4, 2, 10, 20 and 24 μM) was initially evaluated for its effect on the formation of advanced glycation end products (AGEs) in vitro. For in vivo assessment (1, 5 or 15 mg/kg), the rat model of accelerated ageing was developed using d-fructose (1000 mg/kg (i...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28544619/design-and-synthesis-of-some-acridine-piperazine-hybrids-for-the-improvement-of-cognitive-dysfunction
#4
Anuradha Sharma, Poonam Piplani
A novel series of hybrid molecules (5a-5m) was designed, synthesized and evaluated as multifunctional cholinesterase (ChE) inhibitors against cognitive dysfunction. Heterocyclic moieties acridine and piperazine were conjugated with suitable linkers in a single scaffold and the structures of the target compounds were confirmed by IR, (1) H NMR, (13) C NMR and LC-MS analysis. The pharmacological activity of synthesized compounds was evaluated using behavioral models of amnesia viz. step down passive avoidance and elevated plus maze at a dose 0...
May 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28544198/jaboticaba-berry-peel-intake-prevents-insulin-resistance-induced-tau-phosphorylation-in-mice
#5
Ângela G Batista, Edilene S Soares, Monique C P Mendonça, Juliana K da Silva, Ana Paula Dionísio, Cesar R Sartori, Maria Alice da Cruz-Höfling, Mário R Maróstica Júnior
The hyperphosphorylation of tau in the hippocampus can be caused by central and peripheral insulin resistance and these alterations are related to the development of tauopathies, such as Alzheimer's disease. In this study, we used a high-fat diet to induce obesity and insulin resistance in adult Swiss mice and checked whether supplementation with Myrciaria jaboticaba berry peel for 10 weeks could improve insulin sensitivity, learning/memory performance and prevent tau phosphorylation in the hippocampus. Furthermore, adipocytokines, inflammatory markers, and oxidative stress were assessed...
May 19, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28542302/influence-of-catch-up-growth-on-spatial-learning-and-memory-in-a-mouse-model-of-intrauterine-growth-restriction
#6
Cristina Duran Fernandez-Feijoo, Cristina Carrasco Carrasco, Núria Villalmazo Francisco, Judit Cebrià Romero, Jose Ramon Fernández Lorenzo, J C Jiménez-Chillaron, Marta Camprubí Camprubí
BACKGROUND: Intrauterine growth restriction (IUGR) and rapid postnatal weight gain or catch up growth (CUG) increase the susceptibility to metabolic syndrome during adult life. Longitudinal studies have also revealed a high incidence of learning difficulties in children with IUGR. The aim of the present study was to investigate the effect of nutrition and CUG on learning memory in an IUGR animal model. We hypothesized that synaptic protein expression and transcription, an essential mechanism for memory consolidation, might be affected by intrauterine undernutrition...
2017: PloS One
https://www.readbyqxmd.com/read/28542295/therapeutic-benefits-of-phosphodiesterase-4b-inhibition-after-traumatic-brain-injury
#7
Nicole M Wilson, Mark E Gurney, W Dalton Dietrich, Coleen M Atkins
Traumatic brain injury (TBI) initiates a deleterious inflammatory response that exacerbates pathology and worsens outcome. This inflammatory response is partially mediated by a reduction in cAMP and a concomitant upregulation of cAMP-hydrolyzing phosphodiesterases (PDEs) acutely after TBI. The PDE4B subfamily, specifically PDE4B2, has been found to regulate cAMP in inflammatory cells, such as neutrophils, macrophages and microglia. To determine if PDE4B regulates inflammation and subsequent pathology after TBI, adult male Sprague Dawley rats received sham surgery or moderate parasagittal fluid-percussion brain injury (2 ± 0...
2017: PloS One
https://www.readbyqxmd.com/read/28539997/interaction-between-the-cannabinoid-and-vanilloid-systems-on-anxiety-in-male-rats
#8
Nafiseh Faraji, Alireza Komaki, Iraj Salehi
INTRODUCTION: Previous studies have shown that the cannabinoid system is involved in anxiety. In addition, transient receptor potential vanilloid type-1 (TRPV1) channels are new targets for the development of anxiolytics. The present study investigated the possible interaction between the cannabinoid and vanilloid systems on anxiety-like behavior in rats. METHODS: Four different groups of male Wistar rats received intraperitoneal (IP) injections of (1) vehicle (DMSO+saline), (2) cannabinoid receptor agonist WIN55212-2 (WIN) (1 mg/kg), (3) TRPV1 receptor antagonist capsazepine (CPZ) (5 mg/kg), or (4) combined WIN (1 mg/kg) and CPZ (5 mg/kg) treatment 30 minutes before testing in the elevated plus maze...
March 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28539995/the-effect-of-luteinizing-hormone-reducing-agent-on-anxiety-and-novel-object-recognition-memory-in-gonadectomized-rats
#9
Paria Arfa-Fatollahkhani, Arezo Nahavandi, Hossein Abtahi, Shabnam Anjidani, Sahar Borhani, Seyed Behnam Jameie, Mohammad Shabani, Saeed Mehrzadi, Ali Shahbazi
INTRODUCTION: Mood disorders such as anxiety and depression are common following menopause and andropause. Lack of sex steroid hormones is suggested as the primary cause of these disturbances. The level of luteinizing hormone (LH) would also rise 3-4 times than normal in these people. The potential effects of LH on mood and cognitive symptoms following menopause and andropause are still unknown. This study aimed to investigate the effect of increased LH on novel object discrimination (NOD) memory and anxiety like behavior in gonadectomized rats...
March 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28539885/intranasal-insulin-prevents-anesthesia-induced-cognitive-impairment-and-chronic-neurobehavioral-changes
#10
Yanxing Chen, Chun-Ling Dai, Zhe Wu, Khalid Iqbal, Fei Liu, Baorong Zhang, Cheng-Xin Gong
General anesthesia increases the risk for cognitive impairment post operation, especially in the elderly and vulnerable individuals. Recent animal studies on the impact of anesthesia on postoperative cognitive impairment have provided some valuable insights, but much remains to be understood. Here, by using mice of various ages and conditions, we found that anesthesia with propofol and sevoflurane caused significant deficits in spatial learning and memory, as tested using Morris Water Maze (MWM) 2-6 days after anesthesia exposure, in aged (17-18 months old) wild-type (WT) mice and in adult (7-8 months old) 3xTg-AD mice (a triple transgenic mouse model of Alzheimer's disease (AD)), but not in adult WT mice...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28539637/amygdalar-endothelin-1-regulates-pyramidal-neuron-excitability-and-affects-anxiety
#11
Ming Chen, Huan-Huan Yan, Shu Shu, Lei Pei, Long-Kai Zang, Yu Fu, Ze-Fen Wang, Qi Wan, Lin-Lin Bi
An abnormal neuronal activity in the amygdala is involved in the pathogenesis of anxiety disorders. However, little is known about the mechanisms. High-anxiety mice and low-anxiety mice, representing the innate extremes of anxiety-related behaviors, were first grouped according to their anxiety levels in the elevated plus maze test. We found that the mRNA for endothelin-1 (ET1) and ET1 B-type receptors (ETBRs) in the amygdala was down-regulated in high-anxiety mice compared with low-anxiety mice. Knocking down basolateral amygdala (BLA) ET1 expression enhanced anxiety-like behaviors, whereas over-expressing ETBRs, but not A-type receptors (ETARs), had an anxiolytic effect...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539609/manipulation-of-rat-movement-via-nigrostriatal-stimulation-controlled-by-human-visually-evoked-potentials
#12
Bonkon Koo, Chin Su Koh, Hae-Yong Park, Hwan-Gon Lee, Jin Woo Chang, Seungjin Choi, Hyung-Cheul Shin
Here, we report that the development of a brain-to-brain interface (BBI) system that enables a human user to manipulate rat movement without any previous training. In our model, the remotely-guided rats (known as ratbots) successfully navigated a T-maze via contralateral turning behaviour induced by electrical stimulation of the nigrostriatal (NS) pathway by a brain- computer interface (BCI) based on the human controller's steady-state visually evoked potentials (SSVEPs). The system allowed human participants to manipulate rat movement with an average success rate of 82...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539281/-choline-improves-lipopolysaccharide-induced-central-nervous-system-inflammatory-response-and-cognitive-dysfunction-in-mice
#13
Jun Yu, Wei-Xing Zhao, Chun-Yan DU, Na Zhang, Wei-Dong Zhang, Sheng-Yang Jin, Hai Wang, Ze-Guo Feng
OBJECTIVE: To assess the effect of choline in ameliorating lipopolysaccharide (LPS)-induced central nervous system inflammation and cognitive deficits in mice and explore the underlying mechanism. METHODS: Seventy-two mice were randomized into saline control group, LPS group, choline intervention group and choline control group. In the latter two groups, the mice received pretreatment with intraperitoneal injections of choline (40 mg/kg, 3 times daily for 3 consecutive days) prior to microinjection of LPS into the lateral cerebral ventricle to induce central nervous system inflammation; in saline and LPS groups, the mice were pretreated with saline in the same manner before intraventicular injection of artificial cerebrospinal fluid...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28538815/effects-of-electroacupuncture-on-stress-and-anxiety-related-responses-in-rats
#14
Ricardo M Bassetto, Tatiana Wscieklica, Kathlein C P Pouza, Daniela Ortolani, Milena B Viana, Isabel C Cespedes, Regina C Spadari
The aim of this work was to investigate if eletroacupuncture at PC6 would modulate the stress-induced anxiety-like behavior and the level of activation of several brain areas. Rats were distributed in groups: control; submitted to immobilization; submitted to immobilization and eletroacupuncture at PC6 or at the tail. Immobilization increased grooming and decreased stretched attend postures and the time spent in the open arms of the ele-vated plus-maze. Eletroacupuncture at PC6 or tail canceled the effect of immobilization on grooming and attenuated the stretched attend posture...
May 22, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28538801/effects-of-hyperbaric-oxygen-and-nerve-growth-factor-on-the-long-term-neural-behavior-of-neonatal-rats-with-hypoxic-ischemic-brain-damage
#15
Lixia Wei, Qing Ren, Yongjun Zhang, Jiwen Wang
Purpose: To evaluate the effects of HBO (Hyperbaric oxygen) and NGF (Nerve growth factor) on the long-term neural behavior of neonatal rats with HIBD (Neonatal hypoxic ischemic brain damage). Methods: The HIBD model was produced by ligating the right common carotid artery of 7 days old SD (Sprague-Dawley) rats followed by 8% O2 + 92% N2 for 2h. Totally 40 rats were randomly divided into 5 groups including sham-operated group, HIBD control group, HBO treated group, NGF treated group and NGF + HBO treated group...
April 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28536976/memory-and-learning-dysfunction-following-copper-toxicity-biochemical-and-immunohistochemical-basis
#16
Jayantee Kalita, Vijay Kumar, Usha K Misra, Himangsu K Bora
The prototype disease of Cu toxicity in human is Wilson disease, and cognitive impairment is the presenting symptom of it. There is no study correlating Cu-induced excitotoxicity, apoptosis, and astrocytic reaction with memory dysfunction. We report excitotoxicity, apoptosis, and astrocytic reaction of the hippocampus and frontal cortex with memory dysfunction in rat model of Cu toxicity. Thirty-six rats were divided into group I (control) and group II (100 mg/kgBwt/day CuSO4 orally). Y-maze was performed for memory and learning at 0, 30, 60, and 90 days...
May 23, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28536917/comparison-of-early-outcomes-of-surgical-ablation-procedures-for-atrial-fibrillation-concomitant-to-non-mitral-cardiac-surgery-a-japan-adult-cardiovascular-surgery-database-study
#17
Hideaki Takai, Hiroaki Miyata, Noboru Motomura, Kenichi Sasaki, Takashi Kunihara, Shinichi Takamoto
OBJECTIVE: Although the benefit of surgical ablation for atrial fibrillation (AF) performed concomitant to mitral valve surgery is established, whether that performed concomitant to non-mitral cardiac surgery is beneficial remains unclear. In non-mitral, non-left-atriotomy cardiac surgery, the optimal surgical approach for AF remains to be established. Therefore, using the Japan Adult Cardiovascular Surgery Database (JACVSD), we compared 2 surgical ablation procedures [the maze procedure and pulmonary vein isolation (PVI)] performed concomitant to non-mitral cardiac surgery...
May 23, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28536865/the-c-2-derivatives-of-salvinorin-a-ethoxymethyl-ether-sal-b-and-%C3%AE-tetrahydropyran-sal-b-have-anti-cocaine-properties-with-minimal-side-effects
#18
Amy W M Ewald, Peter J Bosch, Aimee Culverhouse, Rachel Saylor Crowley, Benjamin Neuenswander, Thomas E Prisinzano, Bronwyn M Kivell
RATIONALE: Kappa-opioid receptor (KOPr) agonists have pre-clinical anti-cocaine and analgesic effects. However, side effects including sedation, dysphoria, aversion, anxiety and depression limit their therapeutic development. The unique structure of salvinorin A has been used to develop longer acting KOPr agonists. OBJECTIVES: We evaluate two novel C-2 analogues of salvinorin A, ethoxymethyl ether Sal B (EOM Sal B) and β-tetrahydropyran Sal B (β-THP Sal B) alongside U50,488 for their ability to modulate cocaine-induced behaviours and side effects, pre-clinically...
May 23, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28536692/wistar-kyoto-female-rats-are-more-susceptible-to-develop-sugar-binging-a-comparison-with-wistar-rats
#19
Helena Papacostas-Quintanilla, Víctor Manuel Ortiz-Ortega, Carolina López-Rubalcava
The hedonic component of the feeding behavior involves the mesolimbic reward system and resembles addictions. Nowadays, the excessive consumption of sucrose is considered addictive. The Wistar-Kyoto (WKY) rat strain is prone to develop anxiety and addiction-like behavior; nevertheless, a lack of information regarding their vulnerability to develop sugar binging-like behavior (SBLB) and how it affects the reward system persist. Therefore, the first aim of the present study was to compare the different predisposition of two rat strains, Wistar (W) and WKY to develop the SBLB in female and male rats...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28535866/comparing-phlebotomy-by-tail-tip-amputation-facial-vein-puncture-and-tail-vein-incision-in-c57bl-6-mice-by-using-physiologic-and-behavioral-metrics-of-pain-and-distress
#20
Elizabeth S Moore, Thomas A Cleland, Wendy O Williams, Christine M Peterson, Bhupinder Singh, Teresa L Southard, Bret Pasch, Rachael N Labitt, Erin K Daugherity
Tail tip amputation with minimal restraint is not widely used for mouse phlebotomy. In part, this infrequency may reflect policies influenced by tail tip amputation procedures for genotyping, which involve greater handling and tissue removal. To assess tail tip amputation with minimal restraint as a phlebotomy technique, we compared it with 2 more common methods: scruffing with facial vein puncture and lateral tail vein incision with minimal restraint. Blood glucose levels, audible and ultrasonic vocalizations, postphlebotomy activity and grooming behavior, open field and elevated plus maze behaviors, nest-building scores, and histologic changes at the phlebotomy site were evaluated...
May 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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