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https://www.readbyqxmd.com/read/28343366/motor-learning-in-animal-models-of-parkinson-s-disease-aberrant-synaptic-plasticity-in-the-motor-cortex
#1
REVIEW
Tonghui Xu, Shaofang Wang, Rupa R Lalchandani, Jun B Ding
In Parkinson's disease (PD), dopamine depletion causes major changes in the brain, resulting in the typical cardinal motor features of the disease. PD neuropathology has been restricted to postmortem examinations, which are limited to only a single time of PD progression. Models of PD in which dopamine tone in the brain is chemically or physically disrupted are valuable tools in understanding the mechanisms of the disease. The basal ganglia have been well studied in the context of PD, and circuit changes in response to dopamine loss have been linked to the motor dysfunctions in PD...
March 25, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28343361/genetic-dissociation-of-morphine-analgesia-from-hyperalgesia-in-mice
#2
Gina F Marrone, Valerie Le Rouzic, Andras Varadi, Jin Xu, Anjali M Rajadhyaksha, Susruta Majumdar, Ying-Xian Pan, Gavril W Pasternak
RATIONALE: Morphine is the prototypic mu opioid, producing its analgesic actions through traditional 7 transmembrane domain (7TM) G-protein-coupled receptors generated by the mu opioid receptor gene (Oprm1). However, the Oprm1 gene undergoes extensive alternative splicing to yield three structurally distinct sets of splice variants. In addition to the full-length 7TM receptors, it produces a set of truncated variants comprised of only 6 transmembrane domains (6TM). OBJECTIVES: This study explored the relative contributions of 7TM and 6TM variants in a range of morphine actions...
March 25, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28343351/health-related-quality-of-life-hrqol-and-its-correlates-among-community-recruited-children-living-with-hiv-and-uninfected-children-born-to-hiv-infected-parents-in-west-bengal-india
#3
Aritra Das, Roger Detels, Abdelmonem A Afifi, Marjan Javanbakht, Frank J Sorvillo, Samiran Panda
PURPOSE: Helping children living with HIV (CLH) to attain an optimum quality of life is an important goal for HIV programs around the world. Our principal objectives were to determine the association of HIV infection with different domains of health-related quality of life (HRQoL) among 8- to 15-year-old CLH in India and to compare the HRQoL parameters between CLH and HIV-negative children born to HIV-infected parents ("HIV-affected"). We also assessed whether antiretroviral therapy (ART) and CD4 lymphocyte counts were associated with HRQoL among CLH...
March 25, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28343345/assessment-of-nucleosides-as-putative-tumor-biomarkers-in-prostate-cancer-screening-by-ce-uv
#4
Adriana Zardini Buzatto, Mariana de Oliveira Silva, Ronei Jesus Poppi, Ana Valéria Colnaghi Simionato
Cancer is responsible for millions of deaths worldwide, but most base diseases may be cured if detected early. Screening tests may be used to identify early-stage malignant neoplasms. However, the major screening tool for prostate cancer, the prostate-specific antigen test, has unsuitable sensitivity. Since cancer cells may affect the pattern of consumption and excretion of nucleosides, such biomolecules are putative biomarkers that can be used for diagnosis and treatment evaluation. Using a previously validated method for the analysis of nucleosides in blood serum by capillary electrophoresis with UV-vis spectroscopy detection, we investigated 60 samples from healthy individuals and 42 samples from prostate cancer patients...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28343338/expression-of-typical-osteoclast-markers-by-pbmcs-after-peg-induced-fusion-as-a-model-for-studying-osteoclast-differentiation
#5
Luz M Castillo, Carlos A Guerrero, Orlando Acosta
Bone is a metabolically active organ subjected to continuous remodeling process that involves resorption by osteoclast and subsequent formation by osteoblasts. Osteoclast involvement in this physiological event is regulated by macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor κB ligand (RANKL). Fusion of mono-nuclear pre-osteoclasts is a critical event for osteoclast differentiation and for bone resorption. Here we show that PBMCs can be successfully fused with polyethylenglicol (PEG) in order to generated viable osteoclast-like cells that exhibit tartrate-resistant acid phosphatase (TRAP) and bone resorptive activities...
March 25, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28343334/design-and-test-of-a-microsoft-kinect-based-system-for-delivering-adaptive-visual-feedback-to-stroke-patients-during-training-of-upper-limb-movement
#6
Daniel Simonsen, Mirjana B Popovic, Erika G Spaich, Ole Kæseler Andersen
The present paper describes the design and test of a low-cost Microsoft Kinect-based system for delivering adaptive visual feedback to stroke patients during the execution of an upper limb exercise. Eleven sub-acute stroke patients with varying degrees of upper limb function were recruited. Each subject participated in a control session (repeated twice) and a feedback session (repeated twice). In each session, the subjects were presented with a rectangular pattern displayed on a vertical mounted monitor embedded in the table in front of the patient...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28343333/use-of-phase-locking-value-in-sensorimotor-rhythm-based-brain-computer-interface-zero-phase-coupling-and-effects-of-spatial-filters
#7
Wenjuan Jian, Minyou Chen, Dennis J McFarland
Phase-locking value (PLV) is a potentially useful feature in sensorimotor rhythm-based brain-computer interface (BCI). However, volume conduction may cause spurious zero-phase coupling between two EEG signals and it is not clear whether PLV effects are independent of spectral amplitude. Volume conduction might be reduced by spatial filtering, but it is uncertain what impact this might have on PLV. Therefore, the goal of this study was to explore whether zero-phase PLV is meaningful and how it is affected by spatial filtering...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28343269/neophobia-is-negatively-related-to-reversal-learning-ability-in-females-of-a-generalist-bird-of-prey-the-chimango-caracara-milvago-chimango
#8
Jorgelina María Guido, Laura Marina Biondi, Aldo Ivan Vasallo, Rubén Nestor Muzio
In an ever-changing environment, the ability to adapt choices to new conditions is essential for daily living and ultimately, for survival. Behavioural flexibility allows animals to maximise survival and reproduction in novel settings by adjusting their behaviour based on specific information and feedback acquired in their current environments. However, a growing body of evidence indicates that an individual's personality type can limit the extent to which the individual might behave flexibly, by influencing the way an individual pays attention to novelty and how much information it collects and stores, which in turn affects the individual's decision-making and learning process...
March 25, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28343263/genotypic-and-pathogenic-characterization-of-genotype-vii-newcastle-disease-viruses-isolated-from-commercial-farms-in-egypt-and-evaluation-of-heterologous-antibody-responses
#9
A M Saad, Ahmed Samy, M A Soliman, A Arafa, A Zanaty, M K Hassan, A H Sultan, A I Bazid, A H Hussein
Newcastle disease viruses (NDV) represent a major threat to poultry production worldwide. Recently in Egypt NDV circulated extensively, even in vaccinated farms. In the present study samples were collected from sixteen vaccinated broiler farms in animals exhibiting the typical gross lesions of NDV. Virus isolation and pathogenicity studies for positive samples were carried out in accordance to reference procedures and phylogenetic analysis was carried out based on partial sequences of the Fusion gene. Furthermore, in vivo investigation of the ability of heterologous antibody, induced by commercially available lentogenic strain-based vaccines, to efficiently reduce viral shedding was examined...
March 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28343247/development-of-a-qtl-environment-based-predictive-model-for-node-addition-rate-in-common-bean
#10
Li Zhang, Salvador A Gezan, C Eduardo Vallejos, James W Jones, Kenneth J Boote, Jose A Clavijo-Michelangeli, Mehul Bhakta, Juan M Osorno, Idupulapati Rao, Stephen Beebe, Elvin Roman-Paoli, Abiezer Gonzalez, James Beaver, Jaumer Ricaurte, Raphael Colbert, Melanie J Correll
This work reports the effects of the genetic makeup, the environment and the genotype by environment interactions for node addition rate in an RIL population of common bean. This information was used to build a predictive model for node addition rate. To select a plant genotype that will thrive in targeted environments it is critical to understand the genotype by environment interaction (GEI). In this study, multi-environment QTL analysis was used to characterize node addition rate (NAR, node day(- 1)) on the main stem of the common bean (Phaseolus vulgaris L)...
March 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28343240/childhood-angular-kyphosis-a-plea-for-involvement-of-the-pediatric-neurosurgeon
#11
E Cornips, S Koudijs, J Vles, L van Rhijn
INTRODUCTION: Childhood angular kyphosis is rare, as most children are affected by a mixed kyphotic and scoliotic deformity. Published series involving a mix of kyphosis and kyphoscoliosis, pediatric and adult, congenital and acquired cases are almost exclusively authored by orthopedic surgeons, suggesting that (pediatric) neurosurgeons are not involved. CASE SERIES: We present five cases that illustrate the spectrum of angular kyphosis, and these were treated by a multidisciplinary team including child neurologist, orthopedic surgeon, and pediatric neurosurgeon as complementary partners...
March 25, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28343231/segmental-testicular-infarction-case-series-and-literature-review-of-a-rare-diagnosis-in-men-with-acute-testicular-pain
#12
Simone Ernst, Matthias Saar, Horst Brenneis, Reinhard Kubale, Stefan Ueberdiek, Carsten-Henning Ohlmann, Michael Stoeckle, Julia Heinzelbecker
The incidence of segmental testicular infarction (STI) is very low. Such a disorder most often affects young men. The most common symptom is sudden testicular pain. We report 6 cases of men diagnosed with STI. Clinical examination, blood test, urine analysis, and ultrasound examination with colour Doppler were performed. Furthermore, tissue sonoelastography or MRI was performed in selected patients. All men underwent surgical exploration. In all but one man, the affected testis was preserved. Although STI is a rare condition, it should be taken into account if testicular pain prior to suspicious ultrasound imaging occurs...
March 24, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28343216/susceptibility-weighted-imaging-identifies-iron-oxide-labeled-human-neural-stem-cells-automated-computational-detection
#13
Mohsen Baghchechi, Amy Plaia, Mary Hamer, Nirmalya Ghosh, Stephen Ashwal, Andre Obenaus
Neonatal hypoxic-ischemic brain injury (HII) can lead to devastating neurological outcomes such as cerebral palsy, epilepsy, and mental retardation. Human neural stem cell (hNSC) therapy provides new hope for the treatment of neonatal HII. These multipotent cells can aid in HII recovery by activating multiple reparative mechanisms including secretion of neurotrophic factors that enhance brain repair and plasticity. For clinical use of implanted hNSCs, methods are required to identify, quantify, track, and visualize migration and replication in an automated and reproducible fashion...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343214/moderate-grade-germinal-matrix-haemorrhage-activates-cell-division-in-the-neonatal-mouse-subventricular-zone
#14
William J Dawes, Xinyu Zhang, Stephen P J Fancy, David Rowitch, Silvia Marino
Precise temporal and spatial control of the neural stem/progenitor cells within the subventricular zone (SVZ) germinal matrix of the brain is important for normal development in the third trimester and the early postnatal period. The high metabolic demands of proliferating germinal matrix precursors, coupled with the flimsy structure of the germinal matrix cerebral vasculature, are thought to account for the high rates of haemorrhage in extremely- and very-low-birth-weight preterm infants. Germinal matrix haemorrhage can commonly extend to intraventricular haemorrhage (IVH)...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343204/-risk-management-of-hospital-infections-as-a-supporting-tool-for-the-improvement-of-hospital-quality-some-european-examples
#15
Mateusz Sitek, Izabela Witczak, Dorota Kiedik
Prevention and control of nosocomial infections is one of the main pillars of security in each medical facility. This affects the quality of services and helps to minimize the economic losses incurred as a result of such infections. (Prolonged hospitalization, expensive antibiotic therapies, court costs of damages). Nosocomial infections occur in every medical facility in the hospitals in terms of risk of infection compared to other medicinal entities are at greater risk of environmental (number of hospitalizations for one bed, the amount of disinfectants, etc...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343191/the-impact-of-cigarette-smoking-alcohol-drinking-and-physical-inactivity-on-the-risk-of-urolithiasis-occurrence-and-recurrence
#16
Oryna Detsyk, Dmytro Solomchak
INTRODUCTION: Prevention of urolithiasis occurrence and recurrence is important issue, due to one affects mainly people of the working age and often leads to disability. AIM: To study the impact of harmful habits like smoking, alcohol drinking, and hypodynamics on the risk of urolithiasis occurrence and recurrence. MATERIALS AND METHODS: It was conducted a retrospective epidemiological study of a representative sample of 443 patients with urolithiasis (basic group, 403 - of them without recurrences and 40 - with recurrences) and 203 patients without urolithiasis - control group, at discharge them from urologic in-patient departments of health care facilities of Ivano-Frankivsk region...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343180/oxygen-saturation-trends-in-normal-healthy-term-newborns-normal-vaginal-delivery-vs-elective-cesarean-section
#17
Rashi Bhargava, Madhu Mathur, Jyoti Patodia
OBJECTIVES: To study the normal oxygen saturation trends and fetomaternal correlates in healthy term newborns within 30 min of life born by normal vaginal delivery (NVD) and elective cesarean section (CS). MATERIALS AND METHODS: A cross-sectional study was conducted on 200 healthy term newborns born by NVD and elective CS at a tertiary care centre. Routine care as per the Neonatal Resuscitation Program (NRP) 2015 (Wyckoff MH, Aziz K, Escobedo MB, Kapadia VS, Kattwinkel J, Perlman JM, et al...
March 27, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28343176/proactive-approach-at-the-limits-of-viability-improves-the-short-term-outcome-of-neonates-born-after-23-weeks-gestation
#18
Patrik Šimják, Jan Smíšek, Michal Koucký, Tereza Lamberská, Richard Plavka, Zdeněk Hájek
OBJECTIVE: The aim of this single-center study was to identify factors that affect the short-term outcome of newborns delivered around the limits of viability. METHODS: A group of 137 pregnant women who gave birth between 22+0/7 and 25+6/7 weeks of gestation was retrospectively studied. The center supports a proactive approach to infants around the limits of viability. Perinatal and neonatal characteristics were obtained and statistically evaluated. RESULTS: A total of 166 live-born infants were enrolled during a 6-year period; 162 (97...
March 27, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28343168/potential-skin-involvement-in-als-revisiting-charcot-s-observation-a-review-of-skin-abnormalities-in-als
#19
Bastien Paré, François Gros-Louis
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease affecting motor neurons of the brain and spinal cord, leading to progressive paralysis and death. Interestingly, many skin changes have been reported in ALS patients, but never as yet fully explained. These observations could be due to the common embryonic origin of the skin and neural tissue known as the ectodermal germ layer. Following the first observation in ALS patients' skin by Dr Charcot in the 19th century, in the absence of bedsores unlike other bedridden patients, other morphological and molecular changes have been observed...
March 25, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28343167/the-unappreciated-roles-of-the-cholecystokinin-receptor-cck-1-in-brain-functioning
#20
Santiago Ballaz
The CCK(1) receptor is a G-protein-coupled receptor activated by the sulfated forms of cholecystokinin (CCK), a gastrin-like peptide released in the gastrointestinal tract and mammal brain. A substantial body of research supports the hypothesis that CCK(1)r stimulates gallbladder contraction and pancreatic secretion in the gut, as well as satiety in brain. However, this receptor may also fulfill relevant roles in behavior, thanks to its widespread distribution in the brain. The strategic location of CCK(1)r in mesolimbic structures and specific hypothalamic and brainstem nuclei lead to complex interactions with neurotransmitters like dopamine, serotonin, and glutamate, as well as hypothalamic hormones and neuropeptides...
March 25, 2017: Reviews in the Neurosciences
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