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https://www.readbyqxmd.com/read/28543083/afferent-and-efferent-projections-of-the-anterior-cortical-amygdaloid-nucleus-in-the-mouse
#1
Bernardita Cádiz-Moretti, María Abellán-Álvaro, Cecília Pardo-Bellver, Fernando Martínez-García, Enrique Lanuza
The anterior cortical amygdaloid nucleus (ACo) is a chemosensory area of the cortical amygdala that receives afferent projections from both the main and accessory olfactory bulbs. The role of this structure is unknown, partially due to a lack of knowledge of its connectivity. In this work, we describe the pattern of afferent and efferent projections of the ACo by using fluorogold and biotinylated dextranamines as retrograde and anterograde tracers, respectively. The results show that the ACo is reciprocally connected with the olfactory system and basal forebrain, as well as with the chemosensory and basomedial amygdala...
May 23, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28539954/differential-histone-acetylation-in-sub-regions-of-bed-nucleus-of-the-stria-terminalis-underlies-fear-consolidation-and-extinction
#2
Vandana Ranjan, Sanjay Singh, Sarfraj Ahmad Siddiqui, Sukanya Tripathi, Mohd Yahiya Khan, Anand Prakash
OBJECTIVE: The hallmark of anxiety disorders is excessive fear. Previous studies have suggested that selective neural projections from Basal nucleus of stria terminalis (BNST) to amygdala and vice-versa precisely control the fear learning process. However the exact mechanism how the BNST controls fear consolidation and its extinction is largely unknown. In the present study we observed the changes in the BNST sub-regions following fear conditioning and its extinction. METHODS: The change in the number of positive neurons was determined by immunohistochemistry for Acetyl H3 (Histone 3), Acetyl H4 (Histone 4), cAMP response element binding Protein (CBP) and c-fos in three sub-regions of the BNST namely the anterio-lateral BNST (STLP) and anterio-medial BNST (STMA), and lateral-ventral BNST (STLV) of rats subjected to auditory fear conditioning and extinction...
May 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28539659/involvement-of-the-bed-nucleus-of-the-stria-terminalis-in-l-dopa-induced-dyskinesia
#3
Matthieu F Bastide, Christelle Glangetas, Evelyne Doudnikoff, Qin Li, Mathieu Bourdenx, Pierre-Olivier Fernagut, Éric C Dumont, François Georges, Erwan Bézard
A whole brain immediate early gene mapping highlighted the dorsolateral bed nucleus of the stria terminalis (dlBST) as a structure putatively involved in L-3,4-dihydroxyphenylalanine (L-Dopa)-induced dyskinesia (LID), the debilitating side-effects of chronic dopamine replacement therapy in Parkinson's disease (PD). dlBST indeed displayed an overexpression of ∆FosB, ARC, Zif268 and FRA2 only in dyskinetic rats. We thus hypothesized that dlBST could play a role in LID hyperkinetic manifestations. To assess the causal role of the dlBST in LID, we used Daun02 inactivation to selectively inhibit the electrical activity of dlBST ΔFosB-expressing neurons...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28528379/collateralization-of-projections-from-the-paraventricular-nucleus-of-the-thalamus-to-the-nucleus-accumbens-bed-nucleus-of-the-stria-terminalis-and-central-nucleus-of-the-amygdala
#4
Xinwen Dong, Sa Li, Gilbert J Kirouac
The paraventricular nucleus of the thalamus (PVT) is a midline thalamic nucleus with dense projections to the nucleus accumbens (NAc), dorsolateral region of the bed nucleus of the stria terminalis (BSTDL) and the lateral/capsular region of the central nucleus of the amygdala (CeL/CeC). Recent experimental evidence indicates that the PVT is involved in both appetitive and aversive behaviors. However, it is unknown if subgroups of neurons in the PVT innervate different subcortical targets or if the same neurons issue collaterals to multiple areas...
May 20, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28522214/p2-purinergic-receptor-antagonists-disrupt-maternal-behavior-in-lactating-rats
#5
Luciana C Teodoro, Layla D M Cabral, Fabiana C Vilela, Alexandre Giusti-Paiva
The involvement of purinergic signaling in several brain functions has been recognized, but the modulation on maternal behavior by the purinergic system is not established, even though there are functional interactions between the purinergic and oxytocinergic systems. Therefore, the aim of our study was to investigate whether central administration of P2 receptor antagonists affected the maternal behavior of lactating rats and c-Fos immunoreactivity in the forebrain. On day 7 of lactation, female rats were treated with vehicle (5μL; i...
May 15, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28502843/disentangling-the-effects-of-novelty-valence-and-trait-anxiety-in-the-bed-nucleus-of-the-stria-terminalis-amygdala-and-hippocampus-with-high-resolution-7t-fmri
#6
Walker S Pedersen, L Tugan Muftuler, Christine L Larson
The hippocampus and amygdala exhibit sensitivity to stimulus novelty that is reduced in participants with inhibited temperament, which is related to trait anxiety. Although the bed nucleus of the stria terminalis (BNST) is highly connected to the amygdala and is implicated in anxiety, whether the BNST responds to novelty remains unstudied, as well as how trait anxiety may modulate this response. Additionally how novelty, stimulus negativity and trait anxiety interact to affect activity in these areas is also unclear...
May 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28502529/mechanisms-underlying-the-early-risk-to-develop-anxiety-and-depression-a-translational-approach
#7
REVIEW
Ned H Kalin
Anxious temperament (AT) is an early life disposition that markedly increases the risk to develop stress related psychopathology such as anxiety and depressive disorders. Since anxiety and depression are common, and frequently have their onset early in life, a better understanding of the factors related to their childhood onset will facilitate the development of new more effective neurally informed interventions. A nonhuman primate (NHP) developmental model of childhood AT has been established, which has provided an understanding of the neural systems and molecular mechanisms mediating the development of AT...
May 11, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28502391/bed-nucleus-of-the-stria-terminalis-derived-corticotropin-releasing-factor-controls-binge-alcohol-drinking-via-interacting-with-corticotropin-releasing-factor-receptors-1-and-2-in-the-ventral-tegmental-area
#8
https://www.readbyqxmd.com/read/28485259/distinct-phasic-and-sustained-brain-responses-and-connectivity-of-amygdala-and-bed-nucleus-of-the-stria-terminalis-during-threat-anticipation-in-panic-disorder
#9
L Brinkmann, C Buff, K Feldker, S V Tupak, M P I Becker, M J Herrmann, T Straube
BACKGROUND: Panic disorder (PD) patients are constantly concerned about future panic attacks and exhibit general hypersensitivity to unpredictable threat. We aimed to reveal phasic and sustained brain responses and functional connectivity of the amygdala and the bed nucleus of the stria terminalis (BNST) during threat anticipation in PD. METHODS: Using functional magnetic resonance imaging (fMRI), we investigated 17 PD patients and 19 healthy controls (HC) during anticipation of temporally unpredictable aversive and neutral sounds...
May 9, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28483257/protective-role-of-intratympanic-nigella-sativa-oil-against-gentamicin-induced-hearing-loss
#10
Deniz Tuna Edizer, Ozgur Yigit, Zehra Cinar, Mehmet Gul, Eyyup Kara, Birgul Yigitcan, Duygu Hayır, Ahmet Atas
OBJECTIVE: Aminoglycosides, used to combat with life-threatening infections, have a substantial risk of hearing loss. Nigella sativa is an annual herbaceous plant and used for treatment of many diseases for ages. We aimed to investigate the protective role of intratympanic nigella sativa oil against gentamicin induced hearing loss in an animal model. METHODS AND MATERIALS: Twenty eight guinea pigs were randomly divided into four groups: i-control, ii- Intratympanic nigella sativa oil (IT-NSO), iii- Intraperitoneal gentamicin (IP-G) and iv- Intraperitoneal gentamicin and intratympanic nigella sativa oil (IP-G + IT-NSO)...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28469875/deep-brain-stimulation-in-the-bed-nucleus-of-the-stria-terminalis-and-medial-forebrain-bundle-in-a-patient-with-major-depressive-disorder-and-anorexia-nervosa
#11
Patric Blomstedt, Matilda Naesström, Owe Bodlund
Deep brain stimulation (DBS) may be considered in severe cases of therapy-refractory major depressive disorder (MDD). However, DBS for MDD is still an experimental therapy. Therefore, it should only be administered in clinical studies driven by multidisciplinary teams, including surgeons with substantial experience of DBS in the treatment of other conditions.
May 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28456687/oxytocin-receptor-neurotransmission-in-the-dorsolateral-bed-nucleus-of-the-stria-terminalis-facilitates-the-acquisition-of-cued-fear-in-the-fear-potentiated-startle-paradigm-in-rats
#12
Mahsa Moaddab, Joanna Dabrowska
Oxytocin (OT) is a hypothalamic neuropeptide that modulates fear and anxiety-like behaviors. Dorsolateral bed nucleus of the stria terminalis (BNSTdl) plays a critical role in the regulation of fear and anxiety, and expresses high levels of OT receptor (OTR). However, the role of OTR neurotransmission within the BNSTdl in mediating these behaviors is unknown. Here, we used adult male Sprague-Dawley rats to investigate the role of OTR neurotransmission in the BNSTdl in the modulation of the acoustic startle response, as well as in the acquisition and consolidation of conditioned fear using fear potentiated startle (FPS) paradigm...
April 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28450265/construct-and-face-validity-of-a-new-model-for-the-three-hit-theory-of-depression-using-pacap-mutant-mice-on-cd1-background
#13
József Farkas, László Á Kovács, László Gáspár, Anna Nafz, Tamás Gaszner, Balázs Ujvári, Viktória Kormos, Valér Csernus, Hitoshi Hashimoto, Dóra Reglődi, Balázs Gaszner
Major depression is a common cause of chronic disability. Despite decades of efforts, no equivocally accepted animal model is available for studying depression. We tested the validity of a new model based on the three-hit concept of vulnerability and resilience. Genetic predisposition (hit 1, mutation of pituitary adenylate cyclase-activating polypeptide, PACAP gene), early-life adversity (hit 2, 180-min maternal deprivation, MD180) and chronic variable mild stress (hit 3, CVMS) were combined. Physical, endocrinological, behavioral and functional morphological tools were used to validate the model...
April 25, 2017: Neuroscience
https://www.readbyqxmd.com/read/28442065/the-morphological-and-functional-development-of-the-stria-vascularis-in-miniature-pigs
#14
Weiwei Guo, Haijin Yi, Zhang Yan, Lili Ren, Lei Chen, Li Dong Zhao, Yu Ning, David Z Z He, Shi-Ming Yang
The purpose of this study was to examine the morphological and functional development of the lateral wall of the scala media of the cochlea in miniature pigs; light and transmission electron microscopy and electrophysiology were used for this purpose. We showed that the lateral wall of the scala media of the cochlea appears at embryonic Day 21 (E21) when the cochlear duct begins to form. From E28 to E49, the lateral wall can be distinguished according to its position along the cochlea. At E56, cells in the lateral wall begin to differentiate into three different types...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28439099/optogenetic-silencing-of-a-corticotropin-releasing-factor-pathway-from-the-central-amygdala-to-the-bed-nucleus-of-the-stria-terminalis-disrupts-sustained-fear
#15
A Asok, A Draper, A F Hoffman, J Schulkin, C R Lupica, J B Rosen
The lateral central nucleus of the amygdala (CeAL) and the dorsolateral bed nucleus of the stria terminalis (BNSTDL) coordinate the expression of shorter- and longer-lasting fears, respectively. Less is known about how these structures communicate with each other during fear acquisition. One pathway, from the CeAL to the BNSTDL, is thought to communicate via corticotropin-releasing factor (CRF), but studies have yet to examine its function in fear learning and memory. Thus, we developed an adeno-associated viral-based strategy to selectively target CRF neurons with the optogenetic silencer archaerhodopsin tp009 (CRF-ArchT) to examine the role of CeAL CRF neurons and projections to the BNSTDL during the acquisition of contextual fear...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28432009/the-lateral-hypothalamus-to-lateral-habenula-projection-but-not-the-ventral-pallidum-to-lateral-habenula-projection-regulates-voluntary-ethanol-consumption
#16
Chandni Sheth, Teri M Furlong, Kristen A Keefe, Sharif A Taha
The lateral habenula (LHb) is an epithalamic brain region implicated in aversive processing via negative modulation of midbrain dopamine (DA) and serotonin (5-HT) systems. Given the role of the LHb in inhibiting DA and 5-HT systems, it is thought to be involved in various psychiatric pathologies, including drug addiction. In support, it has been shown that LHb plays a critical role in cocaine- and ethanol-related behaviors, most likely by mediating drug-induced aversive conditioning. In our previous work, we showed that LHb lesions increased voluntary ethanol consumption and operant ethanol self-administration and blocked yohimbine-induced reinstatement of ethanol self-administration...
April 19, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28423013/mapping-the-co-localization-of-the-circadian-proteins-per2-and-bmal1-with-enkephalin-and-substance-p-throughout-the-rodent-forebrain
#17
Ariana Frederick, Jory Goldsmith, Nuria de Zavalia, Shimon Amir
Despite rhythmic expression of clock genes being found throughout the central nervous system, very little is known about their function outside of the suprachiasmatic nucleus. Determining the pattern of clock gene expression across neuronal subpopulations is a key step in understanding their regulation and how they may influence the functions of various brain structures. Using immunofluorescence and confocal microscopy, we quantified the co-expression of the clock proteins BMAL1 and PER2 with two neuropeptides, Substance P (SubP) and Enkephalin (Enk), expressed in distinct neuronal populations throughout the forebrain...
2017: PloS One
https://www.readbyqxmd.com/read/28419831/molecular-phenotyping-of-transient-postnatal-tyrosine-hydroxylase-neurons-in-the-rat-bed-nucleus-of-the-stria-terminalis
#18
David A Carter
The bed nucleus of the stria terminalis (BNST) is a complex integrative centre in the forebrain, composed of multiple sub-nuclei, each with discrete populations of neurons. Progress in understanding BNST function, both in the adult and during postnatal maturation, is dependent upon a more complete characterization of neuronal phenotypes in the BNST. The aim of the current study was to define the molecular phenotype of one postnatal BNST neuronal population, in order to identify molecular factors that may underlie both (protein marker-related) immaturity, and secondly, the transience of this phenotype...
April 15, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28399691/effect-of-aldosterone-on-cochlear-af9-expression-and-hearing-in-guinea-pig
#19
Li Qin, Biyun Zhang, Qianying Wang, Duanchao Li, Xiaoli Luo, Shixun Zhong
CONCLUSIONS: Af9 protein in cochlea may be closely related to endolymph regulation by aldosterone and thus may be involved in pathogenesis of endolymphatic hydrops (EH). OBJECTIVES: EH is the pathological characteristic of Ménière's disease (MD). Aldosterone could induce EH, but its relationship with MD is still controversial. The aim of the present study is to investigate the Af9 protein expression in guinea pig cochlea and regulation of Af9 expression and cochlear function by aldosterone...
April 11, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28396628/moxd1-is-a-marker-for-sexual-dimorphism-in-the-medial-preoptic-area-bed-nucleus-of-the-stria-terminalis-and-medial-amygdala
#20
Yousuke Tsuneoka, Shinji Tsukahara, Sachine Yoshida, Kenkichi Takase, Satoko Oda, Masaru Kuroda, Hiromasa Funato
The brain shows various sex differences in its structures. Various mammalian species exhibit sex differences in the sexually dimorphic nucleus of the preoptic area (SDN-POA) and parts of the extended amygdala such as the principal nucleus of the bed nucleus of the stria terminalis (BNSTpr) and posterodorsal part of the medial amygdala (MePD). The SDN-POA and BNSTpr are male-biased sexually dimorphic nuclei, and characterized by the expression of calbindin D-28K (calbindin 1). However, calbindin-immunoreactive cells are not restricted to the SDN-POA, but widely distributed outside of the SDN-POA...
2017: Frontiers in Neuroanatomy
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