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Acta Neurobiologiae Experimentalis

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https://read.qxmd.com/read/30624435/anti-inflammatory-compound-curcumin-and-mesenchymal-stem-cells-in-the-treatment-of-spinal-cord-injury-in-rats
#1
Jiri Ruzicka, Lucia Machova Urdzikova, Anna Kloudova, Anubhav G Amin, Jana Vallova, Sarka Kubinova, Meic H Schmidt, Meena Jhanwar-Uniyal, Pavla Jendelova
Spinal cord injury leads to a robust inflammatory response that is an unfavorable environment for stem cell implantation. In this study, we evaluated the effect of combined therapy of curcumin and mesenchymal stem cells (MSC) on behavioral recovery and tissue sparing, glial scar formation, axonal sprouting and inflammatory responses in a rat experimental model of spinal cord injury (SCI). Balloon-induced compression lesion was performed at thoracic (Th8-9) spinal level. Out of the four groups studied, two groups received curcumin on the surface of the spinal cord immediately after SCI and then once a week for 3 weeks together with an intraperitoneal daily curcumin injection for 28 days...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624434/neurological-improvement-in-patients-with-chronic-spinal-cord-injury-treated-with-leuprolide-acetate-an-agonist-of-gnrh
#2
José Luis Quintanar, Carmen Díaz-Galindo, Denisse Calderón-Vallejo, Irma Hernández-Jasso, Froylán Rojas, Daniel Medina-Aguiñaga, Carlos Olvera-Sandoval
It has been reported that gonadotropin‑releasing hormone (GnRH), and its analogue leuprolide acetate (LA), have neurotrophic properties; particularly in the regeneration of injured spinal cord in animal models and in the case of a patient with spinal cord injury (SCI). The aim of this study was to establish whether treatment with LA improves sensitivity, motor activity and independence in patients with chronic SCI. Patients were treated LA once a month for six months. They were evaluated at the beginning and at the end of treatment; using a sensitivity and motor impairment scale, according to the American Spinal Injury Association (ASIA), and grade of independence scale; employing the spinal cord independence measure (SCIM)...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624433/calcium-release-from-intracellular-stores-is-involved-in-mitochondria-depolarization-after-lowering-extracellular-ph-in-rat-brain-synaptosomes
#3
Tatsiana G Dubouskaya, Sviatlana V Hrynevich, Tatsiana V Waseem, Sergei V Fedorovich
In the brain, pH can be lowered in both healthy and disease states. Previously, we showed that moderate extracellular acidification (down to pHo 7.0), but not intracellular acidification, leads to mitochondrial depolarization in synaptosomes. This indicates that the plasma membranes of neuronal presynaptic endings have proton receptors that can induce mitochondrial dysfunction when activated. In the present paper we attempt to identify this hypothetical receptor. First, we have demonstrated that lowering pHo to 7...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624432/dopamine-d2-receptor-blockade-differentially-affects-the-light%C3%A2-adapted-turtle-and-frog-electroretinogram
#4
Elka Popova, Petia Kupenova
The effects of dopamine D2-class receptor blockade by sulpiride on the electroretinographic (ERG) b-wave (ON response) and d-wave (OFF response) were investigated in light-adapted turtle (Trachemys scripta elegans) and frog (Rana ridibunda) eyecups. For turtle ERG, sulpiride (240 μM) produced an amplitude increase of the b- and d-waves, while the 40 μM and 120 μM of sulpiride were ineffective. Alternatively, for frog ERG, a well-developed and dose-dependent b- and d-wave amplitude decrease was obtained with 40 μM and 240 μM sulpiride...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624431/detrimental-effects-of-chia-salvia-hispanica-l-seeds-on-learning-and-memory-in-aluminum-chloride%C3%A2-induced-experimental-alzheimer-s-disease
#5
Yasemin Bilgic, Enver Ahmet Demir, Nilufer Bilgic, Hatice Dogan, Okan Tutuk, Cemil Tumer
Polyphenols and omega‑3 fatty acids are thought to have beneficial effects in Alzheimer's disease, the most common cause of dementia. Seeds of chia (Salvia hispanica L.) are highly rich in these nutrients, and thus, the present study investigated the effects of chia seeds on behavior and cognition in an aluminum‑induced Alzheimer's disease model in rats. Experimental animals received chia supplementation either during the generation of the model (i.e., pretreatment) or after the model was established (i...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624430/acute-cold-allodynia-induced-by-oxaliplatin-is-attenuated-by-amitriptyline
#6
Anna Furgała, Robert Sałat, Kinga Sałat
Oxaliplatin is a third-generation, platinum-based antitumor drug used to treat colorectal cancer. Since its main adverse effect is neuropathic pain resulting from chemotherapy‑induced peripheral neuropathy (CIPN), this drug is used to study the neurobiology of CIPN in rodents and to search for analgesics that could attenuate neuropathic pain symptoms - cold and tactile allodynia that develop in most of the oxaliplatin‑treated subjects. In this research, testing across various temperatures, we assessed the cold reactivity threshold of albino Swiss mice treated with oxaliplatin...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624429/a-relationship-between-brainstem-auditory-evoked-potential-and-vagal-control-of-heart-rate-in-adult-women
#7
Ariany G Silva, Ana Claúdia F Frizzo, David Garner, Eduardo F B Chagas, Luiz Vinicius de Alcantara Sousa, Rodrigo D Raimundo, Vitor E Valenti
Numerous studies have investigated the connection between autonomic control of heart rate (HR) and auditory stimulus. Yet, the literature lacks evidence of a close association between auditory brainstem processing and HR autonomic control. We aimed to evaluate and verify the relationship between auditory brainstem response (ABR) and HR variability (HRV) in healthy women. Forty‑six healthy female subjects, between the ages of 18 and 30 years old participated in the study. They were subjected to an audiometry examination, followed by rest for 10 minutes for HR recording...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624428/lin28-overexpression-inhibits-neurite-outgrowth-of-primary-cortical-neurons-in-vitro
#8
Mohammad Iqbal Hossain Bhuiyan, Seong Yun Kim, Kyung-Ok Cho
Lin28 has been shown to promote proliferation of progenitors and survival of neurons during cortical neurogenesis. However, the role of Lin28 in the terminal maturation of neurons remains obscured. In this study, we investigated the developmental impact of Lin28 overexpression on neurite outgrowth. Lin28 expression was upregulated by in utero electroporation at E14.5. Two days later, electroporated cortices were dissociated for culturing primary cortical neurons. We found that Lin28 overexpression, which was confirmed immunocytochemically, led to neurite underdevelopment for all time points during culture...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30624427/c-fos-and-neuronal-plasticity-the-aftermath-of-kaczmarek-s-theory
#9
Jacek Jaworski, Katarzyna Kalita, Ewelina Knapska
The development of molecular biology methods in the early 1980s led to a better understanding of the role of transcription factors in mammalian cells. The discovery that some transcription factors are critically important for cells to switch between different functional states was fundamental for modern molecular neurobiology. In the 1980s Leszek Kaczmarek proposed that, analogically to the cell cycle or to cell differentiation, long‑term synaptic plasticity, learning, and memory should also require the activity of transcription factors...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295685/mmp%C3%A2-3-deficiency-does-not-influence-the-length-and-number-of-ca1-dendrites-of-hippocampus-of-adult-mice
#10
Daria Nowak, Lies De Groef, Lieve Moons, Jerzy W Mozrzymas
Over the past two decades, metalloproteinases (MMPs), including MMP‑2, MMP‑3, and MMP‑9, have been implicated as important players in mechanisms underlying various forms of neuroplasticity. In particular, MMP‑3 was found to be involved in both cognitive functions and in plasticity phenomena, but the underlying molecular mechanisms remain largely elusive. In general, it is believed that functional plasticity of neurons is associated with morphological alterations. Interestingly, MMP‑9, in addition to playing a key role in synaptic plasticity, was found to affect plasticity‑related spine morphology changes...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295684/the-use-of-mr%C3%A2-less-mni-based-neuronavigation-for-10-hz-rtms-depression-therapy-electrophysiological-and-clinical-implications
#11
Vladas Valiulis, Giedrius Gerulskis, Kastytis Dapšys, Karolina Valavičiūtė, Aldona Šiurkutė, Valentinas Mačiulis
Repetitive transcranial magnetic stimulation (rTMS) is a popular and effective treatment for drug resistant depression. However, there is considerable variability in clinical outcomes, in previous studies and between patients. Because of high requirements for the use of fMRI based neuronavigation, many practitioners of rTMS still choose to use a standard 5 cm rule for rTMS coil placement which leads to large variations in which brain regions are being stimulated. We decided to test the possibilities of a MNI based MR‑less neuronavigation system in rTMS depression treatment, by comparing the physiological effects and clinical outcomes of 3 distinct stimulation targets...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295683/testosterone-enhancement-during-pregnancy-influences-social-coping-and-gene-expression-of-oxytocin-and-vasopressin-in-the-brain-of-adult-rats
#12
Zuzana Dzirbikova, Alzbeta Talarovičová, Peter Štefánik, Lucia Olexová, Lucia Kršková
Steroid hormones are important mediators of prenatal maternal effects and play an important role in fetal programming. The aim of our study was to investigate how testosterone enhancement during pregnancy influences neurobehavioral aspects of social coping of rat offspring in adulthood. Pregnant rat dams were exposed to depot form of testosterone during the last third of pregnancy (i.e., beginning on the 14th day of pregnancy). Their adult offspring were later tested in a social interaction test and expression of oxytocin and arginine-vasopressin mRNA in the hypothalamic nuclei was evaluated...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295682/afferent-projections-of-the-subthalamic-nucleus-in-the-rat-emphasis-on-bilateral-and-interhemispheric-connections
#13
Safiye Cavdar, Merve Özgür, Yusuf Özgür Çakmak, Yasemin Kuvvet, Sıla Kezban Kunt, Gökay Sağlam
The subthalamic nucleus (STN) is important for normal movement as well as in movement disorders. The STN is a target nuclei in patients with advanced Parkinson's disease (PD). Deep brain stimulation (DBS) is a standard surgical treatment for PD. Although DBS results in a significant reduction in motor disability, several negative side effects have been reported. Thus, to understand the side effects of DBS the connection of the STN should be well known. Therefore, the present study aims to re‑examine the STN with an emphasis on poorly‑ or un‑documented connections...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295681/effects-of-extensive-amygdaloid-lesions-on-conditioned-taste-aversion-in-rats
#14
Andrés Molero-Chamizo
The role of the amygdala in the acquisition of conditioned taste aversion (CTA) is unclear. The lesion studies that have explored specific nuclei of the amygdala point to a probable involvement of the basolateral amygdala, but it remains unclear whether the function of the amygdala in CTA is limited to the activity of the basolateral amygdala. In the current study, extensive bilateral lesions of the amygdala were performed in Wistar rats to explore if the destruction of the amygdala affects the acquisition of CTA, as has been reported with selective lesions of the basolateral amygdala...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295680/effects-of-pink1-mutation-on-synapses-and-behavior-in-the-brain-of-drosophila-melanogaster
#15
Bartosz Doktór, Milena Damulewicz, Wojciech Krzeptowski, Barbara Bednarczyk, Elżbieta Małgorzata Pyza
Mutations in the PINK1 gene are responsible for typical symptoms of Parkinson's disease. Using Drosophila melanogaster mutant PINK1B9 and after PINK1 silencing with RNAi using transgenic lines, we observed defects in synapses and behavior. The lack or reduced expression of PINK1 prolonged sleep during the day (nap) and decreased the total locomotor activity during 24 h, in addition to a decrease in climbing ability and a reduced lifespan. In the brain, PINK1 mutants had a lower level of Bruchpilot (BRP), a presynaptic scaffolding protein that is crucial for neurotransmission in all type of synapses in Drosophila...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295679/hindlimb-suspension%C3%A2-induced-cell-apoptosis-in-the-posterior-parietal-cortex-and-lateral-geniculate-nucleus-corresponding-changes-in-c%C3%A2-fos-protein-and-the-pi3k-akt-signaling-pathway
#16
Wei Huang, Chen Chen, Xufeng Liu
Recent physiological studies indicate that weightlessness reliably alters ocular structure and function, as well as the ability to process visual‑spatial information. The posterior parietal cortex (PPC) and lateral geniculate nucleus (LGN) are two key brain areas implicated in the processing of visual‑spatial information. Here, we used the modified tail‑suspension rat model to simulate the physiological effects of microgravity. Rats were divided into four groups, which exposed to the simulated microgravity environment for 0 (Control group), 7, 14, or 28 days...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295678/the-role-of-dscam-in-the-regulation-of-synaptic-plasticity-possible-involvement-in-neuropsychiatric-disorders
#17
Katarzyna Stachowicz
Synaptic plasticity simply put, is the activity‑dependent modification of the strength or efficacy of synaptic transmission in the network of synapses in the brain. The role of synaptic plasticity in disease is an active area of research. Changes in plasticity translate to the release of neurotransmitters at the synapse and subsequently, the way humans see the world. It is known that neuropsychiatric disorders such as depression, posttraumatic stress disorder (PTSD), and Alzheimer's disease (AD) are related to pathological changes in dynamic processes in synapses, dialogue between neurons, and finally, changes in overall plasticity...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295677/charcot%C3%A2-marie%C3%A2-tooth-type-1a-drug-therapies-role-of-adenylyl-cyclase-activity-and-g%C3%A2-protein-coupled-receptors-in-disease-pathomechanism
#18
Artur Jan Kiepura, Andrzej Kochański
Charcot‑Marie‑Tooth type 1A (CMT1A) is a dysmyelinating disease of the peripheral nervous system that results in a slow progressive weakening and wasting of the distal muscles of the upper and lower limbs. Despite extensive research and clinical trials there is still no treatment for CMT1A that results in complete neurological improvement. Recent studies investigating various pharmacological modulators of adenylyl cyclase activity, including ascorbic acid and ligands of G protein‑coupled receptors (GPCRs), provide hope for future treatments of this type of hereditary motor and sensory neuropathy...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30295676/role-of-food%C3%A2-drug-interactions-in-neurological-and-psychological-diseases
#19
Makbule Gezmen-Karadağ, Elif Çelik, Fatma Zehra Kadayifçi, Özge Yeşildemir, Yasemin Ertaş Öztürk, Duygu Ağagündüz
Given that foods and nutrients have been shown to influence the pharmacokinetics of drugs, drugs may cause changes in the nutritional status of patients and their response to a given drug. Food‑drug interactions are particularly relevant for drugs used to treat neurological and psychological diseases. This review provides an overview of food‑drug interaction in the treatment of neurological and psychological diseases. A literature search was carried out by collecting data from different reviews, reports, and original articles on general or specific drug interactions with food, in patients with a variety of neurological and psychological diseases...
2018: Acta Neurobiologiae Experimentalis
https://read.qxmd.com/read/30019708/changes-in-neurogenesis-with-post%C3%A2-hatching-age-in-the-male-japanese-quail-cortunix-japonica-brain
#20
Pilani Nkomozepi, Pedzisai Mazengenya, Amadi O Ihunwo
Most avian neurogenesis studies have previously focused on the song control system and little attention has been given to non‑song birds. The objective of this study was to assess changes in neurogenesis associated with post‑hatching age (3‑12 weeks) in the Japanese quail brain using proliferating cell nuclear antigen (PCNA) and doublecortin (DCX) immunohistochemistry. PCNA‑immunoreactive (ir) cells were observed mainly in the olfactory bulb ventricular zone, telencephalic ventricular zones and cerebellum...
2018: Acta Neurobiologiae Experimentalis
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