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https://www.readbyqxmd.com/read/29333681/myotropic-activity-and-immuno-localization-of-selected-neuropeptides-of-the-burying-beetle-nicrophorus-vespilloides-coleoptera-silphidae
#1
Arkadiusz Urbański, Jan Lubawy, Paweł Marciniak, Grzegorz Rosiński
Burying beetles (Nicrophorus sp.) are necrophagous insects with developed parental care. Genome of Nicrophorus vespilloides has been recently sequenced, which makes them interesting model organism in behavioural ecology. However, we know very little about their physiology, including the functioning of their neuro-endocrine system. In this study, one of the physiological activities of proctolin, myosuppressin (Nicve-MS), myoinhibitory peptide (Trica-MIP-5) and the short neuropeptide F (Nicve-sNPF) in N. vespilloides have been investigated...
January 15, 2018: Insect Science
https://www.readbyqxmd.com/read/29278013/behind-human-milk-and-breastfeeding-not-only-food
#2
Luca Pecoraro, Carlo Agostoni, Orsiol Pepaj, Angelo Pietrobelli
After birth, breastfeeding should not be considered only a normal and physiological event; in fact, it encloses both physical and the psychological aspects. Human milk cannot be compared to any formula milk. Specifically, human milk has immunological and nutritional properties and it is considered the best available option which guarantees an adequate growth and an optimal development of a child. Differences in term of mediators and hormones have been shown between infants who were breastfed and ones who were not...
December 26, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29273948/icp-curve-morphology-and-intracranial-flow-volume-changes-a-simultaneous-icp-and-cine-phase-contrast-mri-study-in-humans
#3
Mårten Unnerbäck, Johnny T Ottesen, Peter Reinstrup
BACKGROUND: The intracranial pressure (ICP) curve with its different peaks has been extensively studied, but the exact physiological mechanisms behind its morphology are still not fully understood. Both intracranial volume change (ΔICV) and transmission of the arterial blood pressure have been proposed to shape the ICP curve. This study tested the hypothesis that the ICP curve correlates to intracranial volume changes. METHODS: Cine phase contrast magnetic resonance imaging (MRI) examinations were performed in neuro-intensive care patients with simultaneous ICP monitoring...
December 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29250007/how-do-stress-exposure-and-stress-regulation-relate-to-borderline-personality-disorder
#4
REVIEW
Nadège Bourvis, Aveline Aouidad, Clémence Cabelguen, David Cohen, Jean Xavier
Borderline personality disorder (BPD) is a severe and frequent disorder characterized by a pervasive pattern of instability affecting impulse control, emotional regulation, cognitive processing, self-image and interpersonal relationships. Patients' personal histories are often marked by stressful or traumatic experiences, either unique or repeated. Moreover, while clinical signs of the disorder include both chronic and acute features, acute features are mostly triggered by acute stressful situations. Such features include transient cognitive distortion, intense anger, uncontrollable impulsivity, and self-harm behavior - including suicide - and contribute to the burden of the disease...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29246784/micro-coil-induced-inhomogeneous-electric-field-produces-sound-driven-like-neural-responses-in-microcircuits-of-the-mouse-auditory-cortex-in-vivo
#5
Hisayuki Osanai, Shunsuke Minusa, Takashi Tateno
Magnetic stimulation is widely used in neuroscience research and clinical treatment. Despite recent progress in understanding the neural modulation mechanism of conventional magnetic stimulation methods, the physiological mechanism at the cortical microcircuit level is not well understood due to the poor stimulation focality and large electric artifact in the recording. To overcome these issues, we used a sub-millimeter-sized coil (micro-coil) to stimulate the mouse auditory cortex in vivo. To determine the mechanism, we conducted the first direct electrophysiological recording of micro-coil-driven neural responses at multiple sites on the horizontal surface and laminar areas of the auditory cortex...
December 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/29226668/specific-dopamine-sensing-based-on-short-term-plasticity-behavior-of-a-whole-organic-artificial-synapse
#6
Martina Giordani, Marcello Berto, Michele Di Lauro, Carlo Augusto Bortolotti, Michele Zoli, Fabio Biscarini
In this work, we demonstrate the ultra-sensitive and selec-tive detection of dopamine by means of a neuro-inspired device platform without the need of a specific recognition moiety. The sensor is a whole organic device featuring two electrodes made of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate - PEDOT:PSS - patterned on a polydymethylsiloxane - PDMS - flexible substrate. One electrode is pulsed with a train of voltage square waves, to mimic the pre-synaptic neuron behavior, while the other is used to record the displacement current, mimicking the post-synaptic neuron...
December 11, 2017: ACS Sensors
https://www.readbyqxmd.com/read/29223180/the-relationship-between-gait-dynamics-and-future-cognitive-decline-a-prospective-pilot-study-in-geriatric-patients
#7
Lisette H J Kikkert, Nicolas Vuillerme, Jos P van Campen, Bregje A Appels, Tibor Hortobágyi, Claudine J C Lamoth
BACKGROUND: Walking ability recently emerged as a sub-clinical marker of cognitive decline. Hence, the relationship between baseline gait and future cognitive decline was examined in geriatric patients. Because a "loss of complexity" (LOC) is a key phenomenon of the aging process that exhibits in multiple systems, we propose the idea that age- and cognition-related LOC may also become manifested in gait function. The LOC theory suggests that even healthy aging is associated with a (neuro)physiological breakdown of system elements that causes a decline in variability and an overall LOC...
December 10, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/29197233/cholinergic-anti-inflammatory-pathway-inhibits-neointimal-hyperplasia-by-suppressing-inflammation-and-oxidative-stress
#8
Dong-Jie Li, Hui Fu, Jie Tong, Yong-Hua Li, Le-Feng Qu, Pei Wang, Fu-Ming Shen
Neointimal hyperplasia as a consequence of vascular injury is aggravated by inflammatory reaction and oxidative stress. The α7 nicotinic acetylcholine receptor (α7nAChR) is a orchestrator of cholinergic anti-inflammatory pathway (CAP), which refers to a physiological neuro-immune mechanism that restricts inflammation. Here, we investigated the potential role of CAP in neointimal hyperplasia using α7nAChR knockout (KO) mice. Male α7nAChR-KO mice and their wild-type control mice (WT) were subjected to wire injury in left common carotid artery...
November 16, 2017: Redox Biology
https://www.readbyqxmd.com/read/29173476/free-copper-in-serum-an-analytical-challenge-and-its-possible-applications
#9
Simona Catalani, Matteo Paganelli, Maria Enrica Gilberti, Luca Rozzini, Francesco Lanfranchi, Alessandro Padovani, Pietro Apostoli
Copper (Cu), as an essential metal, plays a crucial role in biochemical reactions and in physiological regulations. Cu in plasma is mostly bound to proteins; about 65-90% of Cu is tightly binds with caeruloplasmin and the rest of Cu is loosely binds with albumin and transcuprein. A small but significant relatively "free" fraction, probably complexed with amino acids, is present at around 5% of the total concentration. We developed and validated a new method for direct measurement of free Cu in serum by ultrafiltration with AMICON®Ultra 100K device and determination with AAS...
January 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29170524/quantitative-analysis-of-motor-evoked-potentials-in-the-neonatal-lamb
#10
Luc Joyeux, Marjolijn Deprez, Ahmad Khatoun, Kris Van Kuyck, Kelly Pelsmaekers, Alexander C Engels, Hongmei Wang, Marina Gabriela Monteiro Carvalho Mori da Cunha, Stephanie De Vleeschauwer, Myles Mc Laughlin, Jan Deprest
Evoking motor potentials are an objective assessment method for neuromotor function, yet this was to our knowledge never done in neonatal lambs. There is neither a method for standardized quantification of motor evoked potentials (MEPs). We first aimed to evaluate the feasibility of MEP recording in neonatal lambs and test its validity. Second we aimed to develop an algorithm for its quantification and test its reliability since manual input is required. We recorded myogenic MEPs after transcranial motor cortex stimulation in 6 lambs aged 1-2 days...
November 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29163530/sense-and-immunity-context-dependent-neuro-immune-interplay
#11
REVIEW
Simmie L Foster, Corey R Seehus, Clifford J Woolf, Sébastien Talbot
The sensory nervous and immune systems, historically considered autonomous, actually work in concert to promote host defense and tissue homeostasis. These systems interact with each other through a common language of cell surface G protein-coupled receptors and receptor tyrosine kinases as well as cytokines, growth factors, and neuropeptides. While this bidirectional communication is adaptive in many settings, helping protect from danger, it can also become maladaptive and contribute to disease pathophysiology...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29143889/beyond-pathologizing-harm-understanding-ptsd-in-the-context-of-war-experience
#12
Patricia Benner, Jodi Halpern, Deborah R Gordon, Catherine Long Popell, Patricia W Kelley
An alternative to objectifying approaches to understanding Post-traumatic Stress Disorder (PTSD) grounded in hermeneutic phenomenology is presented. Nurses who provided care for soldiers injured in the Iraq and Afghanistan wars, and sixty-seven wounded male servicemen in the rehabilitation phase of their recovery were interviewed. PTSD is the one major psychiatric diagnosis where social causation is established, yet PTSD is predominantly viewed in terms of the usual neuro-physiological causal models with traumatic social events viewed as pathogens with dose related effects...
November 16, 2017: Journal of Medical Humanities
https://www.readbyqxmd.com/read/29120871/a-srsf1-self-binding-mechanism-restrains-mir505-3p-from-inhibiting-proliferation-of-neural-tumor-cell-lines
#13
Kan Yang, Li Tong, Kai Li, Yuxun Zhou, Junhua Xiao
Srsf1 has currently been demonstrated to be an oncogene that is precisely autoregulated for normal physiology. Although Mir505-3p has been reported as one of the regulatory miRNAs of Srsf1 in mouse embryonic fibroblast (MEF), the inhibitory effect of Mir505-3p on Srsf1 is poorly described in neural tumors. Whether SRSF1 autoregulation interferes with miRNA targeting on the Srsf1 transcript is unclear. In this work, we screened out one target site, out of three potential target sites on 3' UTR of Srsf1 transcript, that was required for Mir505-3p targeting...
November 8, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29099872/a-pilot-randomized-controlled-trial-of-ekg-for-neonatal-resuscitation
#14
Anup Katheria, Kathy Arnell, Melissa Brown, Kasim Hassen, Mauricio Maldonado, Wade Rich, Neil Finer
BACKGROUND: The seventh edition of the American Academy of Pediatrics Neonatal Resuscitation Program recommends the use of a cardiac monitor in infants that need resuscitation. Previous trials have shown that EKG heart rate is available before pulse rate from a pulse oximeter. To date no trial has looked at how the availability of electrocardiogram (EKG) affects clinical interventions in the delivery room. OBJECTIVE: To determine whether the availability of an EKG heart rate value and tracing to the clinical team has an effect on physiologic measures and related interventions during the stabilization of preterm infants...
2017: PloS One
https://www.readbyqxmd.com/read/29091053/multiscale-network-representation-of-physiological-time-series-for-early-prediction-of-sepsis
#15
Supreeth P Shashikumar, Qiao Li, Gari D Clifford, Shamim Nemati
Objective and Approach: Sepsis, a dysregulated immune-mediated host response to infection, is the leading cause of morbidity and mortality in critically ill patients. Indices of heart rate variability and complexity (such as entropy) have been proposed as surrogate markers of neuro-immune system dysregulation with diseases such as sepsis. However, these indices only provide an average, one dimensional description of complex neuro-physiological interactions. We propose a novel multiscale network construction and analysis method for multivariate physiological time series, and demonstrate its utility for early prediction of sepsis...
November 30, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29059457/systemic-regulation-of-bilirubin-homeostasis-potential-benefits-of-hyperbilirubinemia
#16
REVIEW
Ryoichi Fujiwara, Mathias Haag, Elke Schaeffeler, Anne T Nies, Ulrich M Zanger, Matthias Schwab
Neurotoxic bilirubin is the end product of heme catabolism in mammals. Bilirubin is solely conjugated by UDP-glucuronosyltransferase (UGT) 1A1, which is a membrane-bound enzyme that catalyzes a transfer of glucuronic acid. Due to low function of hepatic and intestinal UGT1A1 during the neonatal period, human neonates develop mild to severe physiological hyperbilirubinemia. The accumulation of bilirubin in the brain leads to the onset of irreversible brain damage, kernicterus. Breastfeeding is one of the most significant factors that increase the risk of developing kernicterus in infants...
October 23, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29057172/cerebral-and-retinal-neurovascular-changes-a-biomarker-for-alzheimer-s-disease
#17
Karru Venkata Ravi Teja, Tjm Tos Berendschot, Harry Steinbusch, A B Carroll Webers, R Praveen Murthy, P S Mathuranath
OBJECTIVES: Biomarker quest for Alzheimer's disease (AD) has gone a long way by studying various anatomical, physiological and biochemical parameters for detecting disease onset and predicting prognosis. Almost all the studies converge on the single hypothesis of the amyloid and Tau pathway. Recently, vascular hypothesis has evolved drawing attention towards a complex dynamic anatomical and physiological entity, neuro-vascular (NV) unit. Pathological changes at this level, altering the normal physiology such as auto-regulation and dynamics of blood brain barrier have been hypothesized as a probable basis for AD...
August 2017: Journal of Gerontology & Geriatric Research
https://www.readbyqxmd.com/read/29053785/progranulin-a-new-avenue-towards-the-understanding-and-treatment-of-neurodegenerative-disease
#18
Babykumari P Chitramuthu, Hugh P J Bennett, Andrew Bateman
Progranulin, a secreted glycoprotein, is encoded in humans by the single GRN gene. Progranulin consists of seven and a half, tandemly repeated, non-identical copies of the 12 cysteine granulin motif. Many cellular processes and diseases are associated with this unique pleiotropic factor that include, but are not limited to, embryogenesis, tumorigenesis, inflammation, wound repair, neurodegeneration and lysosome function. Haploinsufficiency caused by autosomal dominant mutations within the GRN gene leads to frontotemporal lobar degeneration, a progressive neuronal atrophy that presents in patients as frontotemporal dementia...
August 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29046256/capping-effects-on-polymorphic-a%C3%AE-16-21-amyloids-depend-on-their-size-a-molecular-dynamics-simulation-study
#19
Myeongsang Lee, Hyun Joon Chang, Hyunsung Choi, Sungsoo Na
Understanding Aβ amyloid oligomers associated with neuro-degenerative diseases is needed due to their toxic characteristics and mediation of amyloid fibril growth. Depending on various physiological circumstances such as ionic strength, metal ion, and point-residue mutation, oligomeric amyloids exhibit polymorphic behavior and structural stabilities, i.e. showing different conformation and stabilities. Specifically, experimental and computational researchers have found that the capping modulates the physical and chemical properties of amyloids by preserving electrostatic energy interactions, which is one of the dominant factors for amyloid stability...
October 10, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/29044165/in-vivo-neuromechanics-decoding-causal-motor-neuron-behavior-with-resulting-musculoskeletal-function
#20
Massimo Sartori, Utku Ş Yavuz, Dario Farina
Human motor function emerges from the interaction between the neuromuscular and the musculoskeletal systems. Despite the knowledge of the mechanisms underlying neural and mechanical functions, there is no relevant understanding of the neuro-mechanical interplay in the neuro-musculo-skeletal system. This currently represents the major challenge to the understanding of human movement. We address this challenge by proposing a paradigm for investigating spinal motor neuron contribution to skeletal joint mechanical function in the intact human in vivo...
October 18, 2017: Scientific Reports
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