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https://www.readbyqxmd.com/read/29049934/molecular-changes-associated-with-escitalopram-response-in-a-stress-based-model-of-depression
#1
Cristina Benatti, Silvia Alboni, Joan M C Blom, Julien Mendlewicz, Fabio Tascedda, Nicoletta Brunello
Converging evidence points at hypothalamus-pituitary-adrenal (HPA) axis hyperactivity and neuroinflammation as important factors involved in the etiopathogenesis of major depressive disorder (MDD) and in therapeutic efficacy of antidepressants. In this study, we examined the molecular effects associated with a response to a week-long treatment with escitalopram in the chronic escape deficit (CED) model, a validated model of depression based on the induction of an escape deficit after exposure of rats to an unavoidable stress...
October 13, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29036632/mapping-compulsivity-in-the-dsm-5-obsessive-compulsive-and-related-disorders-cognitive-domains-neural-circuitry-and-treatment
#2
Naomi A Fineberg, Annemieke M Apergis-Schoute, M Matilde Vaghi, Paula Banca, Claire M Gillan, Valerie Voon, Samuel R Chamberlain, Cinosi Eduardo, Reid Jemma, Sonia Shahper, Edward T Bullmore, Barbara J Sahakian, Trevor W Robbins
Compulsions are repetitive, stereotyped thoughts and behaviors designed to reduce harm. Growing evidence suggests that the neurocognitive mechanisms mediating behavioural inhibition (motor inhibition, cognitive inflexibility) reversal learning and habit formation (shift from goal-directed to habitual responding) contribute toward compulsive activity in a broad range of disorders. In obsessive compulsive disorder (OCD), distributed network perturbation appears focussed around the pre-frontal cortex, caudate, putamen and associated neuro-circuitry...
September 23, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29034840/non-anaesthetic-effects-of-volatile-anaesthetics-a-short-trip-on-the-sea-of-translational-medicine
#3
Lukasz J Krzych, Anna J Szczepanska
BACKGROUND: Volatile anaesthetics (VA) are commonly used worldwide for induction and/or maintenance of general anaesthesia. They act in the central nervous system to reduce sensation and motor response during surgical and invasive diagnostic procedures. VAs also have some non-anaesthetic properties in the brain when administrated to patients at the extremes of age. Their biological impact on other organs should be taken into account during administration of anaesthesia. OBJECTIVE: In this review we summarize the recent knowledge on the non-anaesthetic effects of inhaled halogenic ethers on cells and tissues...
October 13, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28921125/exogenous-cannabinoid-efficacy-merely-a-pharmacokinetic-interaction
#4
Jennifer H Martin, Jennifer Schneider, Catherine J Lucas, Peter Galettis
Endocannabinoid pharmacology is now relatively well understood with a number of endocannabinoids and endogenous cannabinoid neurotransmitters identified and the pharmacokinetics relatively well ascertained. Further, the cannabinoid receptors are now molecularly and pharmacologically characterised and the cell processes involved in endocannabinoid transcription, synthesis, post-translational modification and protein expression are reported. Endogenous cannabinoids have been shown to have key roles in immune and pain pathways and neuro-behavioural signalling including appetite regulation...
September 18, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28911974/molecular-genetics-of-the-transcription-factor-glis3-identifies-its-dual-function-in-beta-cells-and-neurons
#5
Sophie Calderari, Massimiliano Ria, Christelle Gérard, Tatiane C Nogueira, Olatz Villate, Stephan C Collins, Helen Neil, Nicolas Gervasi, Christophe Hue, Nicolas Suarez-Zamorano, Cécilia Prado, Miriam Cnop, Marie-Thérèse Bihoreau, Pamela J Kaisaki, Jean-Baptiste Cazier, Cécile Julier, Mark Lathrop, Michel Werner, Decio L Eizirik, Dominique Gauguier
The GLIS family zinc finger 3 isoform (GLIS3) is a risk gene for Type 1 and Type 2 diabetes, glaucoma and Alzheimer's disease endophenotype. We identified GLIS3 binding sites in insulin secreting cells (INS1) (FDR q<0.05; enrichment range 1.40-9.11 fold) sharing the motif wrGTTCCCArTAGs, which were enriched in genes involved in neuronal function and autophagy and in risk genes for metabolic and neuro-behavioural diseases. We confirmed experimentally Glis3-mediated regulation of the expression of genes involved in autophagy and neuron function in INS1 and neuronal PC12 cells...
September 11, 2017: Genomics
https://www.readbyqxmd.com/read/28910547/diurnal-opposite-variation-between-angiotensinase-activities-in-photo-neuro-endocrine-tissues-of-rats
#6
Germán Domínguez-Vías, Garbiñe Aretxaga-Maza, Isabel Prieto, Juan de Dios Luna, Marc De Gasparo, Manuel Ramírez-Sánchez
Central and peripheral renin-angiotensin systems (RASs) act in a coordinated manner for the physiologic functions regulated by neuroendocrine events. However, whereas the diurnal rhythm of peripheral circulatory and tissue RASs is well known, the circadian behaviour of their components in central photo-neuro-endocrine structures, key elements for the control of circadian rhythms, has been barely studied. In the present study, we analysed the aspartyl- (AspAP) and glutamyl-aminopeptidase (GluAP) (aminopeptidase A) activities, the angiotensinases responsible for the metabolism of Ang I to Ang 2-10 and Ang II to Ang III, respectively, in the retina, anterior hypothalamus and pituitary at different light and dark time-points of a 12:12 h light:dark cycle (7-19 h light), using arylamide derivatives as substrates...
September 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28880359/-a-young-boy-with-periodic-strange-behavior-and-hypersomnia-kleine-levin-syndrome
#7
F Dauwe, L Imeraj, K Dhondt
Kleine-Levin syndrome is a rare neuro-psychiatric disease. Most of the young patients are males who present with hypersomnia, cognitive dysfunction, altered perception, eating disorder (e.g. hyperphagia) or disinhibited behaviour (e.g. hypersexuality). Psychiatric symptoms such as apathy, delusions and hallucinations, depressed mood and compulsive behaviours also appear often and result frequently in a psychiatric referral. These symptoms, however, should be distinguished from those of psychiatric diseases as early as possible in order to ensure that patients do not receive the wrong treatment...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28877755/uric-acid-an-important-screening-tool-to-detect-inborn-errors-of-metabolism-a-case-series
#8
Eresha Jasinge, Grace Angeline Malarnangai Kularatnam, Hewa Warawitage Dilanthi, Dinesha Maduri Vidanapathirana, Kandana Liyanage Subhashinie Priyadarshika Kapilani Menike Jayasena, Nambage Dona Priyani Dhammika Chandrasiri, Neluwa Liyanage Ruwan Indika, Pyara Dilani Ratnayake, Vindya Nandani Gunasekara, Lynette Dianne Fairbanks, Blanka Stiburkova
BACKGROUND: Uric acid is the metabolic end product of purine metabolism in humans. Altered serum and urine uric acid level (both above and below the reference ranges) is an indispensable marker in detecting rare inborn errors of metabolism. We describe different case scenarios of 4 Sri Lankan patients related to abnormal uric acid levels in blood and urine. CASE 1: A one-and-half-year-old boy was investigated for haematuria and a calculus in the bladder. Xanthine crystals were seen in microscopic examination of urine sediment...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28856542/imaging-behavioural-complications-of-parkinson-s-disease
#9
Mikaeel Valli, Alexander Mihaescu, Antonio P Strafella
In addition to motor symptoms, behavioural complications are commonly found in patients with Parkinson's disease (PD). Behavioural complications, including depression, anxiety, apathy, impulse control disorder and psychosis, together have a large impact on PD patient's quality of life. Many neuroimaging studies using PET, SPECT and MRI techniques have been conducted to study the underlying neural mechanisms of PD pathogenesis and pathophysiology in relation to its behavioural complications. This review will survey these PET, SPECT and MRI studies to describe the current understanding of the neuro-chemical, functional and structural changes associated with behavioural complications in PD patients...
August 30, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28844566/role-of-trka-signalling-and-mast-cells-in-the-initiation-of-osteoarthritis-pain-in-the-monoiodoacetate-model
#10
J Sousa-Valente, L Calvo, V Vacca, R Simeoli, J C Arévalo, M Malcangio
OBJECTIVE: Aiming to delineate novel neuro-immune mechanisms for NGF/TrkA signalling in osteoarthritis (OA) pain, we evaluated inflammatory changes in the knee joints following injection of monoiodoacetate (MIA) in mice carrying a TrkA receptor mutation (P782S; TrkA KI mice). METHOD: In behavioural studies we monitored mechanical hypersensitivity following intra-articular MIA and oral prostaglandin D2 (PGD2) synthase inhibitor treatments. In immunohistochemical studies we quantified joint mast cell numbers, calcitonin gene-related peptide expression in synovia and dorsal root ganglia, spinal cord neuron activation and microgliosis...
August 24, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28833833/brain-activity-induced-by-implicit-processing-of-others-pain-and-pleasure
#11
Patrizia Andrea Chiesa, Marco Tullio Liuzza, Emiliano Macaluso, Salvatore Maria Aglioti
Studies indicate that both explicit and implicit processing of affectively charged stimuli may be reflected in specific behavioural markers and physiological signatures. Here, we investigated whether the pleasantness ratings of a neutral target were affected by the subliminal perception of a painful (a slap) or pleasant (a caress) touch delivered to others. In particular, we combined the continuous flash suppression technique with the affective misattribution procedure to explore subliminal processing of observed pain and pleasure in others...
August 18, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28826746/the-prevalence-of-food-addiction-in-a-large-sample-of-adolescents-and-its-association-with-addictive-substances
#12
Gabry W Mies, Jorien L Treur, Junilla K Larsen, Jutka Halberstadt, Joëlle A Pasman, Jacqueline M Vink
The prevalence of overweight and obesity is increasing, due to, among other factors, increased availability of highly palatable food (food high in fat, salt and/or sugar). It has been proposed that certain foods and/or eating behaviours may be addictive, to a degree comparable to substances of abuse. The Yale Food Addiction Scale (YFAS) measures 'food addiction' by translating the diagnostic criteria for substance use disorder to eating behaviour. So far, only a few studies have examined the prevalence of food addiction in children with the YFAS for children (YFAS-C)...
August 4, 2017: Appetite
https://www.readbyqxmd.com/read/28818270/the-glass-ceiling-a-biological-phenomenon
#13
Tom W J Schulpen
Many brilliant and ambitious young women lose their drive for top careers after childbirth. New maternal impulses are at odds with their original ambitions and for many mothers stress and frustration will be the result as they have to combine child care with workweeks of 60-80h to reach or remain at the top. Pregnancy hormones modify the female's brain as has been demonstrated already for decades in animals. This brain plasticity due to adult neurogenesis in the so called maternal circuitry of the limbic system is long-lasting and perhaps lifelong...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28802914/forced-but-not-free-choice-nicotine-during-lactation-alters-maternal-behavior-and-noradrenergic-system-of-pups-impact-on-social-behavior-of-adolescent-isolated-male-rats
#14
Doriana Chirico, Emilia Romano, Marco Famele, Rosa Draisci, Rosanna Mancinelli, Tiziana Pascucci, Walter Adriani
Adverse effects of nicotine during pregnancy have been greatly studied, while nowadays few works are focused on consequences of maternal tobacco smoking after birth. The present study investigated the behavioral and early neurochemical effects of nicotine treatment during first weeks of post-natal life in rats. We used "free choice" treatment (H2O+NIC dams could drink from two bottles, containing 10mg/L nicotine hydrogen tartrate salt, or water) versus "forced choice" (NIC+NIC mothers could drink from two bottles both containing nicotine hydrogen tartrate salt, range from 0...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28767672/bi-stability-in-type-2-diabetes-mellitus-multi-organ-signalling-network
#15
Shubhankar Kulkarni, Sakshi Sharda, Milind Watve
Type 2 diabetes mellitus (T2DM) is believed to be irreversible although no component of the pathophysiology is irreversible. We show here with a network model that the apparent irreversibility is contributed by the structure of the network of inter-organ signalling. A network model comprising all known inter-organ signals in T2DM showed bi-stability with one insulin sensitive and one insulin resistant attractor. The bi-stability was made robust by multiple positive feedback loops suggesting an evolved allostatic system rather than a homeostatic system...
2017: PloS One
https://www.readbyqxmd.com/read/28727554/a-human-humanoid-interaction-through-the-use-of-bci-for-locked-in-als-patients-using-neuro-biological-feedback-fusion
#16
Rosario Sorbello, Salvatore Tramonte, Marcello Giardina, Vincenzo La Bella, Rossella Spataro, Brendan Allison, Christoph Guger, Antonio Chella
This paper illustrates a new architecture for a human-humanoid interaction based on EEG-Brain Computer Interface (EEG-BCI) for patients affected by locked-in syndrome caused by Amyotrophic Lateral Sclerosis (ALS). The proposed architecture is able to recognise users' mental state accordingly to the biofeedback factor Bf , based on users' Attention, Intention and Focus, that is used to elicit a robot to perform customised behaviours. Experiments have been conducted with a population of 8 subjects: 4 ALS patients in a near Locked-in status with normal ocular movement and 4 healthy control subjects enrolled for age, education and computer expertise...
July 18, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28710324/brain-white-matter-fibre-tracts-a-review-of-functional-neuro-oncological-relevance
#17
REVIEW
Natalie L Voets, Andreas Bartsch, Puneet Plaha
State-of-the-art glioma treatment aims to maximise neuro-oncological benefit while minimising losses in quality of life. Optimising this balance remains hindered by our still limited understanding of information processing in the human brain. To help understand individual differences in functional outcomes following neuro-oncological treatment, we review mounting evidence demonstrating the fundamental role that white matter connections play in complex human behaviour. We focus on selected fibre tracts whose destruction is recognised to elicit predictable behavioural deficits and consider specific indications for non-invasive diffusion MRI tractography, the only existing method to map these fibre tracts in vivo, in the selection and planning of neuro-oncological treatments...
July 14, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28704714/current-status-of-biological-treatment-options-in-autism-spectrum-disorder
#18
REVIEW
Valsamma Eapen, Laura Nicholls, Vanessa Spagnol, Nisha E Mathew
Autism Spectrum Disorders (ASDs) are characterised by deficits in social communication and restricted and repetitive behaviours. With an onset in early childhood, ASDs are thought to be heterogeneous, both genetically and clinically. This has led to the notion that "autism" is "autisms", however, there has been limited progress in understanding the different subgroups and the unique pathogenesis that would then allow targeted intervention. Although existing treatments are mainly symptom focussed, research is beginning to unravel the underlying genetic and molecular pathways, structural and functional neuronal circuitry involvement and the associated neurochemicals...
July 6, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28671588/implications-of-neuroinvasive-bacterial-peptides-on-rodents-behaviour-and-neurotransmission
#19
Aneela Taj, Nusrat Jamil
Neuroinvasive microbes are capable of applying their influences on the autonomic nervous system (ANS) of the host followed by the involvement of central nervous system (CNS) by releasing extracellular metabolites that may cause alterations in the biochemical and neurophysiological environment. Consequently synaptic, neuroendocrine, peripheral immune, neuro-immune, and behavioural responses of the host facilitate the progression of infection. The present study was designed to extrapolate the effects of crude and purified extracellular peptides of neuropathogenic bacteria on behavioural responses and neurotransmission of Sprague Dawley (SD) models...
July 2, 2017: Pathogens
https://www.readbyqxmd.com/read/28661258/antidepressant-like-effect-of-a-new-selenium-containing-compound-is-accompanied-by-a-reduction-of-neuroinflammation-and-oxidative-stress-in-lipopolysaccharide-challenged-mice
#20
Angela M Casaril, Micaela Domingues, Mariana Fronza, Beatriz Vieira, Karine Begnini, Eder J Lenardão, Fabiana K Seixas, Tiago Collares, Cristina W Nogueira, Lucielli Savegnago
Organoselenium compounds and indoles have gained attention due to their wide range of pharmacological properties. Depression is a recurrent and disabling psychiatric illness and current evidences support that oxidative stress and neuroinflammation are mechanisms underlying the pathophysiology of this psychiatric condition. Here, we evaluated the effect of 3-((4-chlorophenyl)selanyl)-1-methyl-1H-indole (CMI) in lipopolysaccharide (LPS)-induced depressive-like behaviour, neuroinflammation and oxidative stress in male mice...
June 1, 2017: Journal of Psychopharmacology
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