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https://www.readbyqxmd.com/read/28338593/clinical-correlates-to-assist-with-cte-diagnosis-insights-from-a-novel-rodent-repeat-concussion-model
#1
Gretchen M Thomsen, Ara Ko, Megan Y Harada, Annie Ma, Livia Wyss, Patricia Haro, Jean-Philippe Vit, Pablo Avalos, Navpreet Dhillon, Noell Cho, Oksana Shelest, Eric J Ley
INTRODUCTION: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease linked to repetitive head injuries. CTE symptoms include changes in mood, behavior, cognition and motor function, however CTE is only currently diagnosed post-mortem. Using a rat model of recurrent traumatic brain injury (TBI) we demonstrate rodent deficits that predict the severity of CTE-like brain pathology. METHODS: Bilateral, closed skull, mild TBI was administered once per week to 35 WT rats, 8 rats received 2 injuries ('2xTBI'), 27 rats received 5 injuries ('5xTBI') and 13 rats were sham controls...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28337306/thymoquinone-potentiates-chemoprotective-effect-of-vitamin-d3-against-colon-cancer-a-pre-clinical-finding
#2
Amr M Mohamed, Bassem A Refaat, Adel G El-Shemi, Osama A Kensara, Jawwad Ahmad, Shakir Idris
Prevention of colon cancer among high-risk group has been long lasting research goal. Emerging data have evidenced the anticancer activities of Vitamin D3 (Vit.D) and Thymoquinone (TQ). The aim of the current study was to evaluate the synergistic potential of Thymoquinone and Vitamin D3 in the control of colon cancer progression using azoxymethane-induced rat model. Vit.D and TQ were given individually or in combination 4 week prior to induction and continued for a total of 20 week. At the end of the study, all animals were euthanized and their resected colons were examined macroscopically and microscopically for tumor growth...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28335738/genome-wide-expression-profiling-establishes-novel-modulatory-roles-of-vitamin-c-in-thp-1-human-monocytic-cell-line
#3
Sakshi Dhingra Batra, Malobi Nandi, Kriti Sikri, Jaya Sivaswami Tyagi
BACKGROUND: Vitamin C (vit C) is an essential dietary nutrient, which is a potent antioxidant, a free radical scavenger and functions as a cofactor in many enzymatic reactions. Vit C is also considered to enhance the immune effector function of macrophages, which are regarded to be the first line of defence in response to any pathogen. The THP-1 cell line is widely used for studying macrophage functions and for analyzing host cell-pathogen interactions. RESULTS: We performed a genome-wide temporal gene expression and functional enrichment analysis of THP-1 cells treated with 100 μM of vit C, a physiologically relevant concentration of the vitamin...
March 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28322549/vitamin-c-modulates-the-immunotoxic-effect-of-17-alpha-methyltestosterone-in-nile-tilapia
#4
Haitham G Abo-Al-Ela, Abeer F El-Nahas, Shawky Mahmoud, Essam M Ibrahim
The synthetic androgen, 17 alpha-methyltestosterone (MT), is profusely used and practically needed in the production of all-male Nile tilapia fry; however, such androgenic hormones badly disrupt the immune system. This study aimed to alleviate or counteract the immunotoxic effect of MT using vitamin C (ascorbic acid, vit C). Our results show that the highest phagocytic activity (PA), phagocytic index (PI) and lysozyme activity were detected in the vit C group and the MT plus vit C group. Furthermore, PA and PI were significantly suppressed, but lysozyme activity was stronger in the MT group than the control...
March 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28288780/neuroprotective-effects-of-gabaergic-phenols-correlated-with-their-pharmacological-and-antioxidant-properties
#5
Leticia Delgado-Marín, Mariela Sánchez-Borzone, Daniel A García
AIMS: Various investigations have demonstrated the protective capacity of general anesthetics as neuroprotective agents. The effects of propofol against ischemia are known to reside in its antioxidant properties and its GABAergic activity. Other aromatic alcohols have also been reported as able to protect neurons against oxidative damage. The aim of this work is to evaluate the potential neuroprotective effect of some phenols, structurally analogues of propofol, with proven GABAergic activity...
March 10, 2017: Life Sciences
https://www.readbyqxmd.com/read/28282689/water-exchange-for-screening-colonoscopy-increases-adenoma-detection-rate-a-multicenter-double-blinded-randomized-controlled-trial
#6
Sergio Cadoni, Přemysl Falt, Emanuele Rondonotti, Franco Radaelli, Petr Fojtik, Paolo Gallittu, Mauro Liggi, Arnaldo Amato, Silvia Paggi, Vit Smajstrla, Ondřej Urban, Matteo Erriu, Malcolm Koo, Felix W Leung
Background and study aims Single-center studies, which were retrospective and/or involved unblinded colonoscopists, have suggested that water exchange, but not water immersion, compared with air insufflation significantly increases the adenoma detection rate (ADR), particularly in the proximal and right colon. Head-to-head comparison of the three techniques with ADR as primary outcome and blinded colonoscopists has not been reported to date. In a randomized controlled trial with blinded colonoscopists, we aimed to evaluate the impact of the three insertion techniques on ADR...
March 10, 2017: Endoscopy
https://www.readbyqxmd.com/read/28276446/systemic-injection-of-aav9-gdnf-provides-modest-functional-improvements-in-the-sod1-g93a-als-rat-but-has-adverse-side-effects
#7
G M Thomsen, M Alkaslasi, J-P Vit, G Lawless, M Godoy, G Gowing, O Shelest, C N Svendsen
Injecting proteins into the central nervous system that stimulate neuronal growth can lead to beneficial effects in animal models of disease. In particular, glial cell line-derived neurotrophic factor (GDNF) has shown promise in animal and cell models of Parkinson's disease, Huntington's disease and amyotrophic lateral sclerosis (ALS). Here, systemic AAV9-GDNF was delivered via tail vein injections to young rats to determine whether this could be a safe and functional strategy to treat the SOD1(G93A) rat model of ALS and, therefore, translated to a therapy for ALS patients...
March 9, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28273540/screening-of-benzodiazepines-in-thirty-european-rivers
#8
Jerker Fick, Tomas Brodin, Martina Heynen, Jonatan Klaminder, Micael Jonsson, Katerina Grabicova, Tomas Randak, Roman Grabic, Vit Kodes, Jaroslav Slobodnik, Andrew Sweetman, Mark Earnshaw, Anna Barra Caracciolo, Teresa Lettieri, Robert Loos
Pharmaceuticals as environmental contaminants have received a lot of interest over the past decade but, for several pharmaceuticals, relatively little is known about their occurrence in European surface waters. Benzodiazepines, a class of pharmaceuticals with anxiolytic properties, have received interest due to their behavioral modifying effect on exposed biota. In this study, our results show the presence of one or more benzodiazepine(s) in 86% of the analyzed surface water samples (n = 138) from 30 rivers, representing seven larger European catchments...
February 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/28249458/time-resolved-photoelectron-imaging-with-a-femtosecond-vacuum-ultraviolet-light-source-dynamics-in-the-a%C3%A2-b%C3%A2-and-f%C3%A2-bands-of-so2
#9
Vít Svoboda, Niraghatam Bhargava Ram, Rajendran Rajeev, Hans Jakob Wörner
Time-resolved photoelectron imaging is demonstrated using the third harmonic of a 400-nm femtosecond laser pulse as the ionization source. The resulting 133-nm pulses are combined with 266-nm pulses to study the excited-state dynamics in the A∼/B∼- and F∼-band regions of SO2. The photoelectron signal from the molecules excited to the A∼/B∼-band does not decay for at least several picoseconds, reflecting the population of bound states. The temporal variation of the photoelectron angular distribution (PAD) reflects the creation of a rotational wave packet in the excited state...
February 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28240753/a-comparative-study-of-the-structure-and-bonding-in-heavier-pnictinidene-complexes-are-m-co-n-e-as-sb-and-bi-m-cr-mo-w-and-fe
#10
Iva Vránová, Vít Kremláček, Milan Erben, Jan Turek, Roman Jambor, Aleš Růžička, Mercedes Alonso, Libor Dostál
N,C,N-Chelated pnictinidenes ArE [where E = As (1), Sb (2) or Bi (3); Ar = C6H3-2,6-(CH[double bond, length as m-dash]Nt-Bu)2] were used as ligands for the coordination of transition metal carbonyls. Thus, the reaction of 1-3 with [M(CO)5THF] (where M = Cr, W) or [Mo(CO)5(Me3N)] gave complexes [(ArE)M(CO)5] [where E = As and M = Cr (1a), Mo (1b), W (1c); E = Sb and M = Cr (2a), Mo (2b), W (2c); E = Bi and M = Cr (3a), Mo (3b), W (3c)]. Analogously, the treatment of 1-3 with [Fe2(CO)9] resulted in the formation of the complexes [(ArE)Fe(CO)4] [where E = As (1d), Sb (2d) or Bi (3d)]...
March 14, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28225575/25-hydroxy-vitamin-d-suppresses-hepatitis-c-virus-replication-and-contributes-to-rapid-virological-response-of-treatment-efficacy
#11
Jee-Fu Huang, Yu-Min Ko, Chung-Feng Huang, Ming-Lun Yeh, Chia-Yen Dai, Meng-Hsuan Hsieh, Ching-I Huang, Hua-Ling Yang, Shu-Chi Wang, Zu-Yau Lin, Shinn-Chern Chen, Ming-Lung Yu, Wan-Long Chuang
AIM: 25-hydroxy vitamin D (Vit D) plays a role in treatment outcomes in chronic hepatitis C virus (HCV) infection (CHC). We aimed to clarify HCV replication is inhibited by Vit D in HCV replicon cells. Clinical implication was assessed for rapid virological response (RVR) and sustained virological response (SVR) among those patients receiving anti-viral therapy. METHODS: Cell survival and viral loads were observed in Con1 (genotype-1b) and J6/JFH (genotype-2a) cells treated with different doses of Vit D...
February 22, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28213641/role-of-levothyroxine-and-vitamin-e-supplementation-in-the-treatment-of-oxidative-stress-induced-injury-and-apoptosis-of-myocardial-cells-in-hypothyroid-rats
#12
J Ye, X Zhong, Y Du, C Cai, T Pan
OBJECTIVE: To explore the underlying mechanism and treatment of myocardial injury caused by hypothyroidism, we evaluated oxidative stress in serum and myocardial tissue of hypothyroid rats. The effect of levothyroxine (LT4) replacement therapy and vitamin E (VitE) supplementation on oxidative stress-induced injury and apoptosis of myocardial tissue is examined. METHODS: Male Sprague-Dawley rats were divided into five groups: normal control group, propylthiouracil group (PTU group), LT4 treatment group (PTU + LT4 group), vitamin E treatment group (PTU + VitE group), and combined treatment group (PTU + LT4 + VitE group)...
February 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28210072/the-parenteral-vitamin-c-improves-sepsis-and-sepsis-induced-multiple-organ-dysfunction-syndrome-via-preventing-cellular-immunosuppression
#13
Yu-Lei Gao, Bin Lu, Jian-Hua Zhai, Yan-Cun Liu, Hai-Xia Qi, Ying Yao, Yan-Fen Chai, Song-Tao Shou
Cellular immunosuppression appears to be involved in sepsis and sepsis-induced multiple organ dysfunction syndrome (MODS). Recent evidence showed that parenteral vitamin C (Vit C) had the ability to attenuate sepsis and sepsis-induced MODS. Herein, we investigated the impact of parenteral Vit C on cellular immunosuppression and the therapeutic value in sepsis. Using cecal ligation and puncture (CLP), sepsis was induced in WT and Gulo(-/-) mice followed with 200 mg/Kg parenteral Vit C administration. The immunologic functions of CD4(+)CD25(+) regulatory T cells (Tregs) and CD4(+)CD25(-) T cells, as well as the organ functions, were determined...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28209347/high-resolution-mass-spectrometry-based-method-applicable-for-a-wide-range-of-3-hydroxy-3-methyl-glutaryl-coenzyme-a-reductase-inhibitors-in-blood-serum-including-intermediates-and-products-of-the-cholesterol-biosynthetic-pathway
#14
Vít Kosek, Milena Stránská, Marie Fenclová, Tomáš Ruml, Libor Vítek, Jana Hajšlová
Statins belong to the major class of hypolipidemic drugs. They act as competitive inhibitors of 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase, a rate-limiting enzyme in the cholesterol biosynthetic pathway. This inhibition not only leads to the depletion of cholesterol and its fatty acid esters, but also to the depletion of the intermediates of this metabolic pathway (mainly pyrophosphates), which can play an important role in tumor proliferation. The aim of the current study was to establish a versatile multi-analyte method capable of quantitative determination of various currently-used statins, together with free cholesterol (FC), cholesterol esters (CEs), and some key intermediates of the mevalonate pathway occurring in human serum...
March 17, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28209169/vascular-impulse-technology-versus-elevation-in-the-treatment-of-posttraumatic-swelling-of-extremity-fractures-study-protocol-for-a-randomized-controlled-trial
#15
Marc Schnetzke, Benedict Swartman, Isabel Bonnen, Holger Keil, Svenja Schüler, Paul A Grützner, Jochen Franke
BACKGROUND: Fractures of the extremities are often complicated by a variable degree of swelling secondary to hemorrhage and soft tissue injury. Patients typically require up to 7 days of inpatient bed rest and elevation to reduce swelling to an acceptable level for operative treatment with internal fixation. Alternatively, an intermittent pneumatic compression device, such as the Vascular Impulse Technology (VIT) system, can be used at the injured extremity to reduce the posttraumatic swelling...
February 16, 2017: Trials
https://www.readbyqxmd.com/read/28198914/action-of-vitamin-e-on-experimental-severe-acute-liver-failure
#16
Fabiano Moraes Miguel, Elizângela Gonçalves Schemitt, Josieli Raskopf Colares, Renata Minuzzo Hartmann, Maria Isabel Morgan-Martins, Norma Possa Marroni
BACKGROUND: Severe Acute Liver Failure (ALF) is a life-threatening clinical syndrome characterized by hepatocyte necrosis, loss of hepatic architecture, and impairment of liver functions. One of the main causes of ALF is hepatotoxicity from chemical agents, which damage hepatocytes and result in increase of reactive oxygen species. The vitamin E isoform is the one with the strongest biological antioxidant activity. OBJECTIVE: To evaluate the antioxidant effect of vitamin E in this ALF model...
February 13, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28198449/recombinant-vacuolar-iron-transporter-family-homologue-pfvit-from-human-malaria-causing-plasmodium-falciparum-is-a-fe-2-h-exchanger
#17
Paola Labarbuta, Katie Duckett, Catherine H Botting, Osama Chahrour, John Malone, John P Dalton, Christopher J Law
Vacuolar iron transporters (VITs) are a poorly understood family of integral membrane proteins that can function in iron homeostasis via sequestration of labile Fe(2+) into vacuolar compartments. Here we report on the heterologous overexpression and purification of PfVIT, a vacuolar iron transporter homologue from the human malaria-causing parasite Plasmodium falciparum. Use of synthetic, codon-optimised DNA enabled overexpression of functional PfVIT in the inner membrane of Escherichia coli which, in turn, conferred iron tolerance to the bacterial cells...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28192042/assessing-timing-and-causes-of-neonatal-lamb-losses-in-a-bighorn-sheep-ovis-canadensis-canadensis-herd-via-use-of-vaginal-implant-transmitters
#18
Jamin L Grigg, Lisa L Wolfe, Karen A Fox, Halcyon J Killion, Jessica Jennings-Gaines, Michael W Miller, Brian P Dreher
We evaluated the use of vaginal implant transmitters (VITs) as a means of detecting, capturing, and radio collaring Rocky Mountain bighorn sheep ( Ovis canadensis canadensis) lambs to estimate survival and to facilitate carcass recovery to assess causes of mortality. We focused on one of several bighorn herds in Colorado, USA, suffering from depressed recruitment that was not preceded by a classic all-age die-off. We captured, radio-collared, diagnosed pregnancy by ultrasound examination, and inserted VITs into 15 pregnant ewes from a herd residing near Granite, Colorado...
February 13, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28187310/proteomic-analysis-of-liver-tissue-from-rainbow-trout-oncorhynchus-mykiss-under-high-rearing-density-after-administration-of-dietary-vitamin-e-and-selenium-nanoparticles
#19
Mahdi Naderi, Saeed Keyvanshokooh, Amir Parviz Salati, Alireza Ghaedi
The aim of the present study was to investigate the effects of dietary vitamin E (vit E) and selenium nanoparticles (nanoSe) on liver proteome profile of rainbow trout under high density condition. To correlate the proteome modifications with physiological aspects, growth, serum metabolites (cortisol, glucose, lactate, ALT, AST, and ALP), and liver antioxidant-related parameters (SOD, GPx, CAT, and MDA) were also examined. A total of 1275 fish (average weight of 42.6±2.3g) were stocked into 12 tanks at a density of 80kgm(-3)...
February 4, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28178330/comparative-study-of-extrapolative-factors-linked-with-oxidative-injury-and-anti-inflammatory-status-in-chronic-kidney-disease-patients-experiencing-cardiovascular-distress
#20
Mahmood Rasool, Muhammad Abdul Basit Ashraf, Arif Malik, Sulayman Waquar, Shahida Aziz Khan, Mahmood Husain Qazi, Waseem Ahmad, Muhammad Asif, Sami Ullah Khan, Ahmad Zaheer, Muther Mansoor Qaisrani, Abdul Rehman Khan, Aamir Iqbal, Amir Raza, Saima Iram, Kashif Kamran, Asim Iqbal, Mohammad Zahid Mustafa, Hani Choudhry, Mazin A Zamzami, Wesam H Abdulaal, Mohammad Sarwar Jamal
BACKGROUND: Chronic kidney disease (CKD) is a group of heterogeneous abnormalities affecting the function and structure of the kidney and mostly further proceeds to cardiovascular damage prior to end stage renal disease (ESRD). The oxidative insult and inflammatory mediators have some undefined role in CKD and cardiovascular complications. It is therefore, aimed at to pin point the predictive factors in the development of cardiovascular disorder in patients with chronic kidney disease...
2017: PloS One
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