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Acta Neurobiologiae Experimentalis

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https://www.readbyqxmd.com/read/28379221/nigrostriatal-interaction-in-the-aging-brain-new-therapeutic-target-for-parkinson-s-disease
#1
REVIEW
Janusz W Błaszczyk
Parkinson's disease (PD) is a progressive neurodegenerative disorder of unclear etiology and pathogenesis. Research results gathered to date support the hypothesis that the motor symptoms of the disease result from the gradual loss of midbrain dopamine neurons residing in the substantia nigra pars compacta (SNpc). Recent discoveries, however, significantly expand this knowledge indicating that the primary source of the PD pathogenesis may be located both in the SNpc as well as in the GABAergic striatum. Newly discovered striatal neurogenesis - normally a lifelong process - determines the efficiency of nigrostriatal interaction...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379220/long-term-consumption-of-fermented-rooibos-herbal-tea-offers-neuroprotection-against-ischemic-brain-injury-in-rats
#2
Olusiji Akinrinmade, Sylvester Omoruyi, Daneel Dietrich, Okobi Ekpo
Stroke is the second leading cause of death worldwide, affecting about 240 people a day in South Africa and leaving survivors with residual disabilities. At the moment, there is no clinically approved neuroprotective product for stroke but the consumption of plant polyphenols has been suggested to offer some protection against stroke. In this study, we investigated the effects of long-term consumption of fermented rooibos herbal tea (FRHT) on ischemia/reperfusion (I/R)-induced brain injury in adult male Wistar rats...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379219/effect-of-combined-administration-of-aripiprazole-and-fluoxetine-on-cognitive-functions-in-female-rats-exposed-to-ethyl-alcohol
#3
Krzysztof Kus, Piotr Ratajczak, Natasza Czaja, Tomasz Zaprutko, Elżbieta Nowakowska
Alcoholism is a chronic and recurrent disease. The studies on ethyl alcohol show a progressive deterioration of cognitive functions (motor hyperactivity, operating memory). The aim of the study was to establish whether combined single and chronic administration of aripiprazole (ARI) and fluoxetine (FLU) affects animal locomotor activity or modifies spatial memory functions in female rats exposed to ethyl alcohol. Female Wistar rats were studied in the Morris Water Maze (MWM) and locomotor activity test. Rats undergoing the MWM and locomotor activity test were injected with saline on day 1, 7, 14 and 21 of testing...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379218/further-pharmacological-characterization-of-eltoprazine-focus-on-its-anxiolytic-anorexic-and-adverse%C3%A2-effect-potential
#4
Andreas Gravius, Andrzej Dekundy, Anita Vanaga, Lutz Franke, Wojciech Danysz
Eltoprazine, a drug that had previously been developed for aggression, has recently been investigated for L-DOPA-induced dyskinesia in animal models of Parkinson´s disease (PD) and in dyskinetic PD patients. Much less is known about effects of eltoprazine in other therapeutic indications. Indeed, the pharmacological profile of eltoprazine might suggest its effects on anxiety and food intake, but also adverse effect potential, which is the focus of the present study. Given for 2 weeks either as infusion or as twice-daily treatment, eltoprazine produced a decrease in food intake and body weight at doses leading to 200-500 nM plasma concentrations...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379217/comparison-of-the-influence-of-two-models-of-mild-stress-on-hippocampal-brain-derived-neurotrophin-factor-bdnf-immunoreactivity-in-old-age-rats
#5
Ewa Badowska-Szalewska, Beata Ludkiewicz, Rafał Krawczyk, Natalia Melka, Janusz Moryś
The way hippocampal neurons function during stress in old age (critical times of life) is dependent on brain derived neurotrophin factor (BDNF). This study examined the influence of acute and chronic forced swim (FS) or high-light open field (HL‑OF) stimulation on the density of BDNF immunoreactive (ir) neurons in the hippocampal pyramidal layers of CA1, CA2, CA3 regions and the granular layer of dentate gyrus (DG) in old (postnatal day 720; P720) Wistar Han rats. Our data showed that in comparison with non-stressed rats, acute FS caused a significant increase in the density of BDNF-ir neurons in CA2 and CA3, while acute HL-OF led to an increase in this factor in all hippocampal subfields with the exception of DG...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379216/nicorandil-attenuates-neuronal-mitochondrial-dysfunction-and-oxidative-stress-associated-with-murine-model-of-vascular-calcification
#6
Sriram Ravindran, Krithika Swaminathan, Abhinaya Ramesh, Gino A Kurian
Evidences suggest that the presence of chronic kidney disease (CKD) is associated with cerebrovascular diseases related cognitive decline in dialysis patients. As mitochondrial dysfunction is implicated in neurodegenerative disorders, we hypothesized that changes in brain mitochondria occur due to vascular calcification induced by renal failure and the opening of the mitochondrial potassium channel using nicorandil may prevent its dysfunction. Brain tissues from rats with vascular calcification were studied...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379215/effects-of-cornus-mas-l-and-morus-rubra-l-extracts-on-penicillin-induced-epileptiform-activity-an-electrophysiological-and-biochemical-study
#7
RANDOMIZED CONTROLLED TRIAL
Filiz Tubaş, Sedat Per, Abdulkadir Taşdemir, Ayşe Kaçar Bayram, Mehmet Yıldırım, Aydın Uzun, Recep Saraymen, Hakan Gümüş, Ferhan Elmalı, Hüseyin Per
Traditionally, Morus rubra L. (Moraceae) (red mulberry) and Cornus mas L. (Cornacea) (cornelian cherry) fruits are eaten fresh and are also used in marmalades, juices, jam, natural dyes in Turkey and are believed to have beneficial effects in case of multiple health issues such as antipyretic, diarrhea and intestinal parasites. However, the effects of M. rubra and C. mas on epilepsy has not been known. This study evaluates the effects of M. rubra and C. mas extracts on penicillin-induced epileptiform activity...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379214/impact-of-recurrent-hypoglycemic-stress-on-hindbrain-a2-nerve-cell-energy-metabolism-and-catecholamine-biosynthesis-modulation-by-estradiol
#8
Pratistha Tamrakar, Karen P Briski
It is unclear if habituation of hindbrain A2 metabolo‑sensory neurons to recurrent insulin-induced hypoglycemia (RIIH) correlates with estradiol-dependent adjustments in energy metabolism that favor positive energy balance. Laser-microdissected A2 cells from estradiolor oil-implanted ovariectomized female rats were analyzed by Western blot to assess effects of three prior daily insulin injections on basal and hypoglycemic patterns of catecholamine biosynthetic enzyme dopamine-beta-hydroxylase (DβH) and rate-limiting energy pathway enzyme protein expression...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379213/energy-dense-diet-triggers-changes-in-gut-microbiota-reorganization-of-gut%C3%A2-brain-vagal-communication-and-increases-body-fat-accumulation
#9
Alexandra C Vaughn, Erin M Cooper, Patricia M DiLorenzo, Levi J O'Loughlin, Michael E Konkel, James H Peters, Andras Hajnal, Tanusree Sen, Sun Hye Lee, Claire B de La Serre, Krzysztof Czaja
Obesity is associated with consumption of energy-dense diets and development of systemic inflammation. Gut microbiota play a role in energy harvest and inflammation and can influence the change from lean to obese phenotypes. The nucleus of the solitary tract (NTS) is a brain target for gastrointestinal signals modulating satiety and alterations in gut-brain vagal pathway may promote overeating and obesity. Therefore, we tested the hypothesis that high-fat diet‑induced changes in gut microbiota alter vagal gut-brain communication associated with increased body fat accumulation...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28379212/effects-of-epidural-compression-on-stellate-neurons-and-thalamocortical-afferent-fibers-in-the-rat-primary-somatosensory-cortex
#10
Tzu-Yin Yeh, Guo-Fang Tseng, Chi-Yu Tseng, Yung-Hsin Huang, Pei-Hsin Liu
A number of neurological disorders such as epidural hematoma can cause compression of cerebral cortex. We here tested the hypothesis that sustained compression of primary somatosensory cortex may affect stellate neurons and thalamocortical afferent (TCA) fibers. A rat model with barrel cortex subjected to bead epidural compression was used. Golgi-Cox staining analyses showed the shrinkage of dendritic arbors and the stripping of dendritic spines of stellate neurons for at least 3 months post-lesion. Anterograde tracing analyses exhibited a progressive decline of TCA fiber density in barrel field for 6 months post-lesion...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094823/anhedonia-but-not-passive-floating-is-an-indicator-of-depressive-like-behavior-in-two-chronic-stress-paradigms
#11
Mikhail Yu Stepanichev, Anna O Tishkina, Margarita R Novikova, Irina P Levshina, Sofiya V Freiman, Mikhail V Onufriev, Olga A Levchenko, Natalia A Lazareva, Natalia V Gulyaeva
Depression is the most common form of mental disability in the world. Depressive episodes may be precipitated by severe acute stressful events or by mild chronic stressors. Studies on the mechanisms of depression require both appropriate experimental models (most of them based on the exposure of animals to chronic stressors), and appropriate tests for assessment of depressive states. In this study male Wistar rats were exposed to two different chronic stress paradigms: an eight-week chronic unpredictable mild stress or a two-week combined chronic stress...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094822/analysis-of-methionine-synthase-rs1805087-gene-polymorphism-in-autism-patients-in-northern-iran
#12
Rosa Haghiri, Farhad Mashayekhi, Elham Bidabadi, Zivar Salehi
Autism is characterized by impairment in reciprocal communication and speech, repetitive behaviors, and social communication. The genetic and environmental factors play roles in the pathogenesis of autism. It was recently shown that the genes involved in the folate/homocysteine pathway may be risk factors for autistic children. One of the genes that may be the risk factor for autism is Methionine synthase (MTR). MTR is responsible for the regeneration of methionine from homocysteine. The aim of this study was to analyze the association of MTR A2756G gene polymorphism (rs1805087) and the risk of autism in a population in northern Iran...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094821/upregulation-of-ccl3-mip-1alpha-regulated-by-mapks-and-nf-kappab-mediates-microglial-inflammatory-response-in-lps-induced-brain-injury
#13
Xiaobo Zhu, Dee Wei, Ou Chen, Zhaohua Zhang, Jiang Xue, Shanying Huang, Weiwei Zhu, Yibiao Wang
Growing evidence suggests that macrophage inflammatory protein (MIP)-1alpha (synonym CCL3) is upregulated in the neuroinflammatory processes initiated by some brain disorders, but its precise role and regulatory mechanism remain unclear. The present work aims to evaluate the role of CCL3/MIP-1alpha in lipopolysaccharide (LPS)-induced brain injury, and investigate whether the MAPKs and NF-kappaB regulate CCL3/MIP-1alpha expression. We firstly examined the patterns of CCL3/MIP-1alpha expression and phosphorylation of MAPKs in the brains of rats 6, 24, and 72 h after LPS administration...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094820/the-effect-of-network-template-from-normal-subjects-in-the-detection-of-network-impairment
#14
Huang Chun-Chao, Lin Shang-Hua, Lin Ching-Po, The Alzheimer's Disease Neuroimaging Initiative
This study aimed to provide a simple way to approach group differences by independent component analysis when researching functional connectivity changes of resting-state network in brain disorders. We used baseline resting state functional magnetic resonance imaging from the Alzheimer's disease neuroimaging initiative dataset and performed independent component analysis based on different kinds of subject selection, by including two downloaded templates and single-subject independent component analysis method...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094819/age-dependent-concomitant-changes-in-synaptic-dysfunction-and-gabaergic-pathway-in-the-app-ps1-mouse-model
#15
Tutu Oyelami, An De Bondt, Ilse Van den Wyngaert, Kirsten Van Hoorde, Luc Hoskens, Hamdy Shaban, John A Kemp, Wilhelmus H Drinkenburg
Synaptic dysfunction is a well-documented manifestation in animal models of Alzheimer's disease pathology. In this context, numerous studies have documented reduction in the functionality of synapses in various models. In addition, recent research has shed more light on increased excitability and its link to seizures and seizure-like activities in AD patients as well as in mouse models. These reports of hyperexcitability contradict the observed reduction in synaptic function and have been suggested to be as a result of the interplay between inhibitory and excitatory neuronal mechanism...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094818/the-physiology-of-blood-platelets-and-changes-of-their-biological-activities-in-multiple-sclerosis
#16
REVIEW
Barbara Wachowicz, Agnieszka Morel, Elżbieta Miller, Joanna Saluk
Increasing evidence indicates that blood platelets contribute to diverse processes that extend beyond hemostasis. Many of the same mechanisms that play a role in hemostasis and thrombosis facilitate platelets the participation in other physiological and pathological processes, particularly in the inflammation, the immune response and central nervous system disorders. Platelets are involved in pathophysiology of central nervous system diseases, especially in the pathogenesis of multiple sclerosis, but their role appears to be neglected...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28094817/immune-dysfunction-and-neuroinflammation-in-autism-spectrum-disorder
#17
REVIEW
Geir Bjorklund, Khaled Saad, Salvatore Chirumbolo, Janet K Kern, David A Geier, Mark R Geier, Mauricio A Urbina
Autism spectrum disorder (ASD) is a complex heterogeneous neurodevelopmental disorder with a complex pathogenesis. Many studies over the last four decades have recognized altered immune responses among individuals diagnosed with ASD. The purpose of this critical and comprehensive review is to examine the hypothesis that immune dysfunction is present more frequently, and it is related to ASD in humans. It was found that that often individuals diagnosed with ASD have alterations in immune cells such as T cells, B cells, monocytes, natural killer cells, and dendritic cells...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/27685777/spatial-memory-formation-differentially-affects-c-fos-expression-in-retrosplenial-areas-during-place-avoidance-training-in-rats
#18
Monika Malinowska, Monika Niewiadomska, Malgorzata Wesierska
The retrosplenial cortex is involved in spatial memory function, but the contribution of its individual areas is not well known. To elucidate the involvement of retrosplenial cortical areas 29c and 30 in spatial memory, we analyzed the expression of c-Fos in these areas in the experimental group of rats that were trained in a spatial place avoidance task, i.e. to avoid shocks presented in an unmarked sector of a stable arena under light conditions. Control rats were trained in the same context as the experimental rats either without (Control-noUS) or with shocks (Control-US) that were delivered in a random, noncontingent manner for three days...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/27685776/the-false-positive-responses-of-analgesic-drugs-to-the-intradermal-serotonin-and-compound-48-80-induced-scratches-as-an-animal-model-of-itch
#19
Fatih Ilkaya, Ozgur Yesilyurt, Melik Seyrek, Ozgur Gunduz, Tayfun Ide, Ahmet Akar, Ahmet Ulugol, Hasan Guzel, Ahmet Dogrul, Durmus Ucar, Caner Gunaydin
Intradermal injection of pruritogens such as serotonin, histamine and compound 48/80 into the skin and then, the evaluation of the scratching behavior is the commonly used animal model to advance pruritic research and drug development. However, predictive validity of this model is poorly documented. There is a close interaction between itch and pain sensations with regard to mediation through an anatomically and functionally identical neuronal pathway. One approach is whether the existing animal model of itch differentiates itch or pain to show efficacy of clinically effective analgesic drugs as a back translation...
2016: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/27685775/effects-of-social-stress-and-clomipramine-on-emotional-memory-in-mice
#20
Aranzazu Duque, Concepción Vinader-Caerols, Santiago Monleón
We have previously observed impairing effects of social defeat stress (CSDS) on inhibitory avoidance (IA) in mice. Given the similarity between changes produced by social stress in animals and symptoms of certain human psychopathologies such as depression and anxiety, the effects of the antidepressant clomipramine on IA impairment produced by CSDS were evaluated in the present study. Male CD1 mice were randomly assigned to the groups: non-stressed+saline, non-stressed+clomipramine, stressed+saline and stressed+clomipramine...
2016: Acta Neurobiologiae Experimentalis
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