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Frontiers in Neuroanatomy

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https://www.readbyqxmd.com/read/28790896/a-quantitative-analysis-of-the-distribution-of-crh-neurons-in-whole-mouse-brain
#1
Jie Peng, Ben Long, Jing Yuan, Xue Peng, Hong Ni, Xiangning Li, Hui Gong, Qingming Luo, Anan Li
Corticotropin-releasing hormone (CRH), with widespread expression in the brain, plays a key role in modulating a series of behaviors, including anxiety, arousal, motor function, learning and memory. Previous studies have focused on some brain regions with densely distributed CRH neurons such as paraventricular hypothalamic nucleus (PVH) and bed nuclei of the stria terminalis (BST) and revealed some basic structural and functional knowledge of CRH neurons. However, there is no systematic analysis of brain-wide distribution of CRH neurons...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28790895/brain-metal-distribution-and-neuro-inflammatory-profiles-after-chronic-vanadium-administration-and-withdrawal-in-mice
#2
Oluwabusayo R Folarin, Amanda M Snyder, Douglas G Peters, Funmilayo Olopade, James R Connor, James O Olopade
Vanadium is a potentially toxic environmental pollutant and induces oxidative damage in biological systems including the central nervous system (CNS). Its deposition in brain tissue may be involved in the pathogenesis of certain neurological disorders which after prolonged exposure can culminate into more severe pathology. Most studies on vanadium neurotoxicity have been done after acute exposure but in reality some populations are exposed for a lifetime. This work was designed to ascertain neurodegenerative consequences of chronic vanadium administration and to investigate the progressive changes in the brain after withdrawal from vanadium treatment...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28790894/anatomical-organization-of-urocortin-3-synthesizing-neurons-and-immunoreactive-terminals-in-the-central-nervous-system-of-non-human-primates-sapajus-spp
#3
Daniella S Battagello, Giovanne B Diniz, Paulo L Candido, Joelcimar M da Silva, Amanda R de Oliveira, Kelly R Torres da Silva, Claudimara F P Lotfi, José A de Oliveira, Luciane V Sita, Cláudio A Casatti, David A Lovejoy, Jackson C Bittencourt
Urocortin 3 (UCN3) is a neuropeptide member of the corticotropin-releasing factor (CRF) peptide family that acts as a selective endogenous ligand for the CRF, subtype 2 (CRF2) receptor. Immunohistochemistry and in situ hybridization data from rodents revealed UCN3-containing neurons in discrete regions of the central nervous system (CNS), such as the medial preoptic nucleus, the rostral perifornical area (PFA), the medial nucleus of the amygdala and the superior paraolivary nucleus. UCN3-immunoreactive (UCN3-ir) terminals are distributed throughout regions that mostly overlap with regions of CRF2 messenger RNA (mRNA) expression...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28785208/the-temporal-contribution-of-the-gbx2-lineage-to-cerebellar-neurons
#4
Nellwyn Hagan, Juliana Guarente, Debra Ellisor, Mark Zervas
The cerebellum (Cb) is an exquisite structure that controls elaborate motor behaviors and is essential for sensory-motor learning. During development, the Cb is derived from rhombomere 1 (r1). Within this embryonic compartment, precursors in r1 are patterned by signaling cues originating from the isthmus organizer (IsO) and subsequently undergo complex morphogenic movements to establish their final position in the mature Cb. The transcription factor Gbx2 is expressed in the developing Cb and is intimately involved in organizing and patterning the Cb...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28769772/molecular-programming-of-mesodiencephalic-dopaminergic-neuronal-subsets
#5
REVIEW
Marten P Smidt
Dopamine neurons of the substantia nigra compacta (SNc) and ventral tegmental area (VTA) are critical components of the neuronal machinery to control emotion and movement in mammals. The slow and gradual death of these neurons as seen in Parkinson's disease has triggered a large investment in research toward unraveling the molecular determinants that are used to generate these neurons and to get an insight in their apparent selective vulnerability. Here, I set out to summarize the current view on the molecular distinctions that exist within this mesodiencephalic dopamine (mdDA) system and elaborate on the molecular programming that is responsible for creating such diversity...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28751858/distinct-localization-of-snap47-protein-in-gabaergic-and-glutamatergic-neurons-in-the-mouse-and-the-rat-hippocampus
#6
Agnieszka Münster-Wandowski, Heike Heilmann, Felix Bolduan, Thorsten Trimbuch, Yuchio Yanagawa, Imre Vida
Synaptosomal-associated protein of 47 kDa (SNAP47) isoform is an atypical member of the SNAP family, which does not contribute directly to exocytosis and synaptic vesicle (SV) recycling. Initial characterization of SNAP47 revealed a widespread expression in nervous tissue, but little is known about its cellular and subcellular localization in hippocampal neurons. Therefore, in the present study we applied multiple-immunofluorescence labeling, immuno-electron microscopy and in situ hybridization (ISH) and analyzed the localization of SNAP47 in pre- and postsynaptic compartments of glutamatergic and GABAergic neurons in the mouse and rat hippocampus...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28747874/the-functioning-of-a-cortex-without-layers
#7
REVIEW
Julien Guy, Jochen F Staiger
A major hallmark of cortical organization is the existence of a variable number of layers, i.e., sheets of neurons stacked on top of each other, in which neurons have certain commonalities. However, even for the neocortex, variable numbers of layers have been described and it is just a convention to distinguish six layers from each other. Whether cortical layers are a structural epiphenomenon caused by developmental dynamics or represent a functionally important modularization of cortical computation is still unknown...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28740465/corrigendum-microstructural-abnormalities-were-found-in-brain-gray-matter-from-patients-with-chronic-myofascial-pain
#8
Peng Xie, Bangyong Qin, Ganjun Song, Yi Zhang, Song Cao, Jin Yu, Jianjiang Wu, Jiang Wang, Tijiang Zhang, Xiaoming Zhang, Tian Yu, Hong Zheng
[This corrects the article on p. 122 in vol. 10, PMID: 28066193.].
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28740464/neuronal-subset-specific-migration-and-axonal-wiring-mechanisms-in-the-developing-midbrain-dopamine-system
#9
REVIEW
Sara Brignani, R J Pasterkamp
The midbrain dopamine (mDA) system is involved in the control of cognitive and motor behaviors, and is associated with several psychiatric and neurodegenerative diseases. mDA neurons receive diverse afferent inputs and establish efferent connections with many brain areas. Recent studies have unveiled a high level of molecular and cellular heterogeneity within the mDA system with specific subsets of mDA neurons displaying select molecular profiles and connectivity patterns. During mDA neuron development, molecular differences between mDA neuron subsets allow the establishment of subset-specific afferent and efferent connections and functional roles...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28725186/foxb1-regulates-negatively-the-proliferation-of-oligodendrocyte-progenitors
#10
Yuanfeng Zhang, Elti Hoxha, Tianyu Zhao, Xunlei Zhou, Gonzalo Alvarez-Bolado
Oligodendrocyte precursor cells (OPC), neurons and astrocytes share a neural progenitor cell (NPC) in the early ventricular zone (VZ) of the embryonic neuroepithelium. Both switch to produce either of the three cell types and the generation of the right number of them undergo complex genetic regulation. The components of these regulatory cascades vary between brain regions giving rise to the unique morphological and functional heterogeneity of this organ. Forkhead b1 (Foxb1) is a transcription factor gene expressed by NPCs in specific regions of the embryonic neuroepithelium...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28725185/reticular-formation-and-pain-the-past-and-the-future
#11
REVIEW
Isabel Martins, Isaura Tavares
The involvement of the reticular formation (RF) in the transmission and modulation of nociceptive information has been extensively studied. The brainstem RF contains several areas which are targeted by spinal cord afferents conveying nociceptive input. The arrival of nociceptive input to the RF may trigger alert reactions which generate a protective/defense reaction to pain. RF neurons located at the medulla oblongata and targeted by ascending nociceptive information are also involved in the control of vital functions that can be affected by pain, namely cardiovascular control...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28713249/crispr-cas9-mediated-zebrafish-knock-in-as-a-novel-strategy-to-study-midbrain-hindbrain-boundary-development
#12
Gokul Kesavan, Avinash Chekuru, Anja Machate, Michael Brand
The midbrain-hindbrain boundary (MHB) acts as an organizer and controls the fate of neighboring cells to develop into either mesencephalic (midbrain) or metencephalic (hindbrain) cells by secreting signaling molecules like Wnt1 and Fgf8. The zebrafish is an excellent vertebrate model for studying MHB development due to the ease of gene manipulation and the possibility of following cellular dynamics and morphogenetic processes using live imaging. Currently, only very few reporter and/or Cre-driver lines are available to study gene expression at the MHB, hampering the understanding of MHB development, and traditional transgenic technologies using promoter/enhancer fragments or bacterial artificial chromosome (BAC)-mediated transgenesis often do not faithfully recapitulate endogenous expression patterns...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28694773/loud-noise-exposure-produces-dna-neurotransmitter-and-morphological-damage-within-specific-brain-areas
#13
Giada Frenzilli, Larisa Ryskalin, Michela Ferrucci, Emanuela Cantafora, Silvia Chelazzi, Filippo S Giorgi, Paola Lenzi, Vittoria Scarcelli, Alessandro Frati, Francesca Biagioni, Stefano Gambardella, Alessandra Falleni, Francesco Fornai
Exposure to loud noise is a major environmental threat to public health. Loud noise exposure, apart from affecting the inner ear, is deleterious for cardiovascular, endocrine and nervous systems and it is associated with neuropsychiatric disorders. In this study we investigated DNA, neurotransmitters and immune-histochemical alterations induced by exposure to loud noise in three major brain areas (cerebellum, hippocampus, striatum) of Wistar rats. Rats were exposed to loud noise (100 dBA) for 12 h. The effects of noise on DNA integrity in all three brain areas were evaluated by using Comet assay...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28659767/hornets-have-it-a-conserved-olfactory-subsystem-for-social-recognition-in-hymenoptera
#14
Antoine Couto, Aniruddha Mitra, Denis Thiéry, Frédéric Marion-Poll, Jean-Christophe Sandoz
Eusocial Hymenoptera colonies are characterized by the presence of altruistic individuals, which rear their siblings instead of their own offspring. In the course of evolution, such sterile castes are thought to have emerged through the process of kin selection, altruistic traits being transmitted to following generation if they benefit relatives. By allowing kinship recognition, the detection of cuticular hydrocarbons (CHCs) might be instrumental for kin selection. In carpenter ants, a female-specific olfactory subsystem processes CHC information through antennal detection by basiconic sensilla...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28642688/lower-functional-connectivity-of-the-periaqueductal-gray-is-related-to-negative-affect-and-clinical-manifestations-of-fibromyalgia
#15
Marie-Andrée Coulombe, Keith St Lawrence, Dwight E Moulin, Patricia Morley-Forster, Mahsa Shokouhi, Warren R Nielson, Karen D Davis
Fibromyalgia (FM) syndrome is characterized by chronic widespread pain, muscle tenderness and emotional distress. Previous studies found reduced endogenous pain modulation in FM. This deficiency of pain modulation may be related to the attributes of chronic pain and other clinical symptoms experienced in patients with FM. Thus, we tested whether there is a link between the clinical symptoms of FM and functional connectivity (FC) of the periaqueductal gray (PAG), a key node of pain modulation. We acquired resting state 3T functional MRI (rsfMRI) data from 23 female patients with FM and 16 age- and sex- matched healthy controls (HC) and assessed FM symptoms with the Brief Pain Inventory (BPI), Fibromyalgia Impact Questionnaire (FIQ), Hospital Anxiety and Depression Scale (HADS) and Pain Catastrophizing Scale (PCS)...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28638323/sortilin-fragments-deposit-at-senile-plaques-in-human-cerebrum
#16
Xia Hu, Zhao-Lan Hu, Zheng Li, Chun-Sheng Ruan, Wen-Ying Qiu, Aihua Pan, Chang-Qi Li, Yan Cai, Lu Shen, Yaping Chu, Bei-Sha Tang, Huaibin Cai, Xin-Fu Zhou, Chao Ma, Xiao-Xin Yan
Genetic variations in the vacuolar protein sorting 10 protein (Vps10p) family have been linked to Alzheimer's disease (AD). Here we demonstrate deposition of fragments from the Vps10p member sortilin at senile plaques (SPs) in aged and AD human cerebrum. Sortilin changes were characterized in postmortem brains with antibodies against the extracellular and intracellular C-terminal domains. The two antibodies exhibited identical labeling in normal human cerebrum, occurring in the somata and dendrites of cortical and hippocampal neurons...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28611598/early-paradoxical-increase-of-dopamine-a-neurochemical-study-of-olfactory-bulb-in-asymptomatic-and-symptomatic-mptp-treated-monkeys
#17
Christian Pifl, Harald Reither, Natalia Lopez-Gonzalez Del Rey, Carmen Cavada, Jose A Obeso, Javier Blesa
Parkinson's disease (PD) is a neurodegenerative disease with both motor and non-motor manifestations. Hyposmia is one of the early non-motor symptoms, which can precede motor symptoms by several years. The relationship between hyposmia and PD remains elusive. Olfactory bulb (OB) pathology shows an increased number of olfactory dopaminergic cells, protein aggregates and dysfunction of neurotransmitter systems. In this study we examined tissue levels of dopamine (DA) and serotonin (5-hydroxytryptamine, 5-HT) and their metabolites, of noradrenaline (NA) and of the amino acid neurotransmitters aspartate, glutamate, taurine and γ-aminobutyric acid in OBs of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) treated Macaca fascicularis in different stages, including monkeys who were always asymptomatic, monkeys who recovered from mild parkinsonian signs, and monkeys with stable moderate or severe parkinsonism...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28588456/activity-dependent-modulation-of-granule-cell-survival-in-the-accessory-olfactory-bulb-at-puberty
#18
Livio Oboti, Sara Trova, Roberta Schellino, Marilena Marraudino, Natalie R Harris, Olubukola M Abiona, Mojca Stampar, Weihong Lin, Paolo Peretto
The vomeronasal system (VNS) is specialized in the detection of salient chemical cues triggering social and neuroendocrine responses. Such responses are not always stereotyped, instead, they vary depending on age, sex, and reproductive state, yet the mechanisms underlying this variability are unclear. Here, by analyzing neuronal survival in the first processing nucleus of the VNS, namely the accessory olfactory bulb (AOB), through multiple bromodeoxyuridine birthdating protocols, we show that exposure of female mice to male soiled bedding material affects the integration of newborn granule interneurons mainly after puberty...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28579947/commentary-gene-therapy-a-promising-approach-for-neuroprotection-in-parkinson-s-disease
#19
COMMENT
Juan Segura-Aguilar
No abstract text is available yet for this article.
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28559801/parsing-heterogeneous-striatal-activity
#20
REVIEW
Kae Nakamura, Long Ding
The striatum is an input channel of the basal ganglia and is well known to be involved in reward-based decision making and learning. At the macroscopic level, the striatum has been postulated to contain parallel functional modules, each of which includes neurons that perform similar computations to support selection of appropriate actions for different task contexts. At the single-neuron level, however, recent studies in monkeys and rodents have revealed heterogeneity in neuronal activity even within restricted modules of the striatum...
2017: Frontiers in Neuroanatomy
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