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https://www.readbyqxmd.com/read/28743043/neurotrophy-and-immunomodulation-of-induced-neural-stem-cell-grafts-in-a-mouse-model-of-closed-head-injury
#1
Mou Gao, Hui Yao, Qin Dong, Yan Zhang, Yang Yang, Yihua Zhang, Zhijun Yang, Minhui Xu, Ruxiang Xu
Closed head injury (CHI) usually results in severe and permanent neurological impairments, which are caused by several intertwined phenomena, such as cerebral edema, blood-brain barrier (BBB) disruption, neuronal loss, astroglial scarring and inflammation. We previously reported that induced neural stem cells (iNSCs), similar to neural stem cells (NSCs), can accelerate neurological recovery in vivo and produce neurotrophic factors in vitro. However, the effects of iNSC neurotrophy following CHI were not determined...
July 18, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28740747/in-vitro-assessment-of-anti-proliferative-effect-induced-by-%C3%AE-mangostin-from-cratoxylum-arborescens-on-hela-cells
#2
Aisha I El Habbash, Najihah Mohd Hashim, Mohamed Yousif Ibrahim, Maizatulakmal Yahayu, Fatima Abd Elmutaal Omer, Mashitoh Abd Rahman, Noraziah Nordin, Gwendoline Ee Cheng Lian
Natural medicinal products possess diverse chemical structures and have been an essential source for drug discovery. Therefore, in this study, α-mangostin (AM) is a plant-derived compound was investigated for the apoptotic effect on human cervical cancer cells (HeLa). The cytotoxic effects of AM on the viability of HeLa and human normal ovarian cell line (SV40) were evaluated by using MTT assay. Results showed that AM inhibited HeLa cells viability at concentration- and time-dependent manner with IC50 value of 24...
2017: PeerJ
https://www.readbyqxmd.com/read/28740473/bonding-pictures-affective-ratings-are-specifically-associated-to-loneliness-but-not-to-empathy
#3
Heraldo D Silva, Rafaela R Campagnoli, Bruna Eugênia F Mota, Cássia Regina V Araújo, Roberta Sônia R Álvares, Izabela Mocaiber, Vanessa Rocha-Rego, Eliane Volchan, Gabriela G L Souza
Responding to pro-social cues plays an important adaptive role in humans. Our aims were (i) to create a catalog of bonding and matched-control pictures to compare the emotional reports of valence and arousal with the International Affective Picture System (IAPS) pictures; (ii) to verify sex influence on the valence and arousal of bonding and matched-control pictures; (iii) to investigate if empathy and loneliness traits exert a specific influence on emotional reports for the bonding pictures. To provide a finer tool for social interaction studies, the present work defined two new sets of pictures consisting of "interacting dyads" (Bonding: N = 70) and matched controls "non-interacting dyads" (Controls: N = 70)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28739443/sauna-exposure-immediately-prior-to-short-term-heat-acclimation-accelerates-phenotypic-adaptation-in-females
#4
Jessica A Mee, Sophie Peters, Jonathan H Doust, Neil S Maxwell
OBJECTIVES: Investigate whether a sauna exposure prior to short-term heat acclimation (HA) accelerates phenotypic adaptation in females. DESIGN: Randomised, repeated measures, cross-over trial. METHODS: Nine females performed two 5-d HA interventions (controlled hyperthermia Tre≥38.5°C), separated by 7-wk, during the follicular phase of the menstrual cycle confirmed by plasma concentrations of 17-β estradiol and progesterone. Prior to each 90-min HA session participants sat for 20-min in either a temperate environment (20°C, 40% RH; HAtemp) wearing shorts and sports bra or a hot environment (50°C, 30% RH) wearing a sauna suit to replicate sauna conditions (HAsauna)...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28738817/exacerbation-of-bronchiectasis-by-pseudomonas-monteilii-a-case-report
#5
Aditi, Malini Shariff, Kiran Beri
BACKGROUND: Pseudomonas spp are important opportunistic and nosocomial pathogens. One such species is Pseudomonas monteilii (P. monteilii). It has been described as an environmental contaminant and potential pathogen. We identified this organism as the causative agent of an exacerbation of bronchiectasis and an environmental contaminant in our hospital on two separate occasions. CASE PRESENTATION: P. monteilii was the cause of an exacerbation of bronchiectasis in a 30-year-old HIV negative male...
July 24, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28738385/pharmacological-and-nonpharmacological-interventions-to-arrest-neuroprogression-in-psychiatric-disorders
#6
Fotini Boufidou, Angelos Halaris
The concept of neuroprogression describes the progressive course of the disorder and stresses the progressive, recurrent, and chronic course of the disease entity under consideration. It subsumes clinical manifestations of the disease process and may also entail morphological, biochemical, neurochemical, immunological, physiological, and genetic aspects that contribute to the progressive course of the disease in question. In an attempt to identify the appropriate agent or method that could arrest neuroprogression in psychiatric patients, we conducted an evaluation of the use of anti-inflammatory drugs under the perspective of current pharmacological and neurophysiological data...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28736816/antinociceptive-activity-of-ent-dihydrotucumanoic-acid-isolated-from-gymnosperma-glutinosum-spreng-less
#7
Angel Josabad Alonso-Castro, Marco Martin González-Chávez, Juan Ramón Zapata-Morales, Alexia Karina Verdinez-Portales, Amanda Sánchez-Recillas, Rolffy Ortiz-Andrade, Mario Isiordia-Espinoza, Fidel Martínez-Gutiérrez, Marco Antonio Ramírez-Morales, Fabiola Domínguez, María Elizabeth Juache-Flores, Roberto Martínez
Preclinical Research The diterpene ent-dihydrotumanoic acid (DTA) was among the compounds isolated from Gymnosperma glutinosum (Spreng) Less (Asteraceae). There are no reports regarding the pharmacological effects of DTA. Cytotoxicity against cancer cells (1-250 µM), and the antibacterial (50-1400 µM) activity of DTA were evaluated using the MTT assay, and the minimum inhibitory concentration test, respectively. The antidiarrheal (1-100 mg/kg p.o.) and anti-inflammatory (2 mg/ear) effects of DTA were evaluated using castor oil and 12-O-tetradecanoylphorbol-13-acetate, respectively...
July 24, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28736269/iodine-lithium-alpha-dextrin-il%C3%AE-d-against-staphylococcus-aureus-skin-infections-a-comparative-study-of-in-vitro-bactericidal-activity-and-cytotoxicity-between-il%C3%AE-d-and-povidone-iodine
#8
A P Zisi, M K Exindari, E K Siska, G G Koliakos
BACKGROUND: As antimicrobial resistance continuously increases, revisiting old antimicrobial agents, modified to enhance efficacy and safety, becomes important. Iodine has been widely used for more than 150 years as a wound and skin disinfectant; it is an effective broad range bactericide, and to date, it lacks reports of resistance development. The most important iodine-based agent is Povidone-Iodine (PVP-I) which provides excellent antibacterial activity. However, its safety profile has been questioned...
July 20, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28735686/nicotine-pretreatment-reduced-cocaine-induced-cpp-and-its-reinstatement-in-a-sex-and-dose-related-manner-in-adult-c57bl-6j-mice
#9
Prableen K Singh, Kabirullah Lutfy
Previous preclinical studies have shown that nicotine pretreatment during adolescence increases the reinforcing actions of cocaine. However, little is known about the effect of prior nicotine administration on cocaine-induced conditioned place preference (CPP) and its reinstatement in adult mice. Besides, little information is available regarding the role of sex in this cross-talk between nicotine and cocaine. Thus, we examined if nicotine administration during adulthood would differentially alter cocaine-induced CPP, its extinction and reinstatement in male versus female mice and if the dose of nicotine is important in this regard...
July 20, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28735282/a-systematic-review-of-criteria-used-to-define-recovery-from-sport-related-concussion-in-youth-athletes
#10
REVIEW
Mohammad Nadir Haider, John J Leddy, Sonja Pavlesen, Melissa Kluczynski, John G Baker, Jeffrey C Miecznikowski, Barry S Willer
OBJECTIVE: The Concussion in Sport Group guidelines recommend a multifaceted approach to help clinicians make return to sport decisions. The purpose of this study was to identify the most common multifaceted measures used to define clinical recovery from sport-related concussion in young athletes (high school and/or college level) and to summarise existing knowledge of criteria used to make return to sport decisions. DESIGN: Systematic review. DATA SOURCES: The PubMed (MEDLINE), SPORTDiscus and Embase electronic databases were searched from 1 January 2000 to 1 March 2017 by three independent reviewers...
July 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28734700/predicting-muscle-forces-during-the-propulsion-phase-of-single-leg-triple-hop-test
#11
Felipe Costa Alvim, Paulo Roberto Garcia Lucareli, Luciano Luporini Menegaldo
Functional biomechanical tests allow the assessment of musculoskeletal system impairments in a simple way. Muscle force synergies associated with movement can provide additional information for diagnosis. However, such forces cannot be directly measured noninvasively. This study aims to estimate muscle activations and forces exerted during the preparation phase of the single leg triple hop test. Two different approaches were tested: static optimization (SO) and computed muscle control (CMC). As an indirect validation, model-estimated muscle activations were compared with surface electromyography (EMG) of selected hip and thigh muscles...
July 15, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28733132/plastic-and-micro-evolutionary-responses-of-a-nematode-to-the-host-immune-environment
#12
Emmanuel Guivier, Cédric Lippens, Bruno Faivre, Gabriele Sorci
Parasitic organisms have to cope with the defences deployed by their hosts and this can be achieved adopting immune evasion strategies or optimal life history traits according to the prevailing pattern of immune-mediated mortality. Parasites often encounter variable immune environments both within and between hosts, promoting the evolution of plastic strategies instead of fixed responses. Here, we explored the plasticity and micro-evolutionary responses of immunomodulatory mechanisms and life history traits to the immune environment provided by the host, using the parasitic nematode Heligmosomoides polygyrus...
July 18, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28733129/endocannabinoids-exert-cb1-receptor-mediated-neuroprotective-effects-in-models-of-neuronal-damage-induced-by-hiv-1-tat-protein
#13
Changqing Xu, Douglas J Hermes, Blessing Nwanguma, Ian R Jacobs, Kenneth Mackie, Somnath Mukhopadhyay, Aron H Lichtman, Bogna Ignatowska-Jankowska, Sylvia Fitting
In the era of combined antiretroviral therapy (cART), human immunodeficiency virus type 1 (HIV-1) is considered a chronic disease that specifically targets the brain and causes HIV-1-associated neurocognitive disorders (HAND). Endocannabinoids (eCBs) elicit neuroprotective and anti-inflammatory actions in several central nervous system (CNS) disease models, but their effects in HAND remain unknown. HIV-1 does not infect neurons, but produces viral toxins, such as transactivator of transcription (Tat), that disrupt neuronal calcium equilibrium and give rise to synaptodendritic injuries and cell death, the former being highly correlated with HAND...
July 18, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28732772/a-brain-specific-isoform-of-apoptosis-inducing-factor-2-attenuates-ischemia-induced-oxidative-stress-in-ht22-cells
#14
Yuanyang Xie, Siyi Wanggou, Qing Liu, Xuejun Li, Jingping Liu, Ming Wu
Apoptosis-inducing factor (AIF) is a family of conserved mitochondrial flavoproteins that have both vital and lethal functions in cells. The function and regulation of AIF-1, the original described and most abundant isoform, has been extensively studied, whereas three other AIF isoforms have not been further characterized. Here, we investigated the role of AIF-2, a brain-specific isoform of AIF, in an in vitro ischemia model in neuronal HT22 cells. We showed that AIF-2 was constitutively expressed in HT22 cells, and the oxygen and glucose deprivation (OGD) did not alter AIF-2 expression...
July 18, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28732166/mel-n16-a-series-of-novel-endomorphin-analogs-with-good-analgesic-activity-and-a-favorable-side-effect-profile
#15
Xin Liu, Long Zhao, Yuan Wang, Jingjing Zhou, Dan Wang, Yixin Zhang, Xianghui Zhang, Zhaojuan Wang, Dongxu Yang, Lingyun Mou, Rui Wang
Opioid peptides are neuromodulators that bind to opioid receptors and reduce pain sensitivity. Endomorphins are one of the most active endogenous opioid peptides, and they have good affinity and selectivity toward the μ opioid receptor. However, their clinical usage is hindered by their inability to cross the blood-brain barrier, and their poor in vivo activity after peripheral injection. In order to overcome these defects, we have designed and synthesized a series of novel endomorphin analogs with multiple site modifications...
July 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28732098/variability-of-the-pressure-measurements-exerted-by-the-tip-of-laryngoscope-during-laryngeal-sensory-testing-a-clinical-demonstration
#16
Asako Kaneoka, Jessica M Pisegna, Gintas P Krisciunas, Takaharu Nito, Michael P LaValley, Cara E Stepp, Susan E Langmore
Purpose: Clinicians often test laryngeal sensation by touching the laryngeal mucosa with the tip of a flexible laryngoscope. However, the pressure applied to the larynx by using this touch method is unknown, and the expected responses elicited by this method are uncertain. The variability in pressure delivered by clinicians using the touch method was investigated, and the subject responses to the touches were also reported. Methods: A fiberoptic pressure sensor passed through the working channel of a laryngoscope, with its tip positioned at the distal port of the channel...
July 21, 2017: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28731655/concurrent-validity-and-interobserver-reliability-of-the-epinfant-pediatric-perceived-exertion-rating-scale-among-healthy-chilean-children
#17
Iván Rodríguez-Núñez, Carlos Manterola
The objective of this study was to determine the validity and reliability of the EPInfant pediatric perceived exertion rating scale among Chilean children. Children aged 8-12 years old were selected; their heart rate, perceived exertion and workload were recorded during two consecutive Chester tests performed with a one week interval. Pearson's r coefficient and the intraclass correlation coefficient were estimated. Thirty-one children (17 boys) were included in the study. A strong correlation was observed between perceived exertion and reference criteria, in addition to a high intraclass correlation coefficient...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28730964/ccl2-is-modulated-by-cytokines-and-ppar-g-in-anaplastic-thyroid-cancer
#18
Silvia Martina Ferrari, Giusy Elia, Simona Piaggi, Enke Baldini, Salvatore Ulisse, Mario Miccoli, Gabriele Materazzi, Alessandro Antonelli, Poupak Fallahi
BACKGROUND AND OBJECTIVE: Chemokine (C-C motif) ligand (CCL)2, the prototype Th2 chemokine, is secreted by tumor cells, and has growth promoting effects. Whether CCL2 protumorigenic activities will be validated, then CCL2 and its receptor CCR2 may be therapeutic targets in cancer. METHODS: We tested in "primary human anaplastic thyroid carcinoma (ATC) cells" (ANA) versus "normal thyroid follicular cells" (TFC): a) CCL2 secretion basally, after IFN-g and/or TNF-a stimulation; b) PPARg activation by thiazolidinediones (TZDs), rosiglitazone or pioglitazone, on CCL2 secretion, and on proliferation and apoptosis in ANA...
July 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28729952/nano-sized-zeolites-as-modulators-of-thiacloprid-toxicity-on-chironomus-riparius
#19
Carla S Lorenz, Anna-Jorina Wicht, Leyla Guluzada, Barbara Crone, Uwe Karst, Hwa Jun Lee, Rita Triebskorn, Stefan B Haderlein, Carolin Huhn, Heinz-R Köhler
This study investigated whether zeolites of different size (Y30 (nano-sized) and H-Beta(OH)-III (forming large aggregates/agglomerates composed of 50 nm small primary particles)) exerted acute toxicity on larvae of the non-biting midge, Chironomus riparius, and whether such zeolites are able to modulate the toxicity of a common insecticide, thiacloprid, by means of adsorption of a dissolved toxicant. We conducted acute toxicity tests with fourth instar larvae of C. riparius. In these tests, larvae were exposed to zeolites or thiacloprid solely, or to mixtures of both compounds...
2017: PeerJ
https://www.readbyqxmd.com/read/28729538/geometric-heterogeneity-of-continental-shale-in-the-yanchang-formation-southern-ordos-basin-china
#20
Lihui Li, Beixiu Huang, Yufang Tan, Xiaolong Deng, Yanyan Li, Hu Zheng
Favorable prospects for the exploration of shale gas have been demonstrated in the Ordos Basin, China. Outcrop and core observations indicate that there are abundant laminas in the shale strata, which exert a great influence on hydro-fracture propagation, gas storage and fluid flow. In this study, the continental shale of the Chang 72 Member, collected from the south of Ordos Basin, was investigated to characterize the geometric heterogeneity. Laminas at multiple scales were observed and measured using conventional logging, borehole TV, core analysis, scanning electron microscopy, and the Particle and Crack Analysis System...
July 20, 2017: Scientific Reports
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