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https://www.readbyqxmd.com/read/27926457/modulation-of-brain-pufa-content-in-different-experimental-models-of-mice
#1
Corinne Joffre, Stéphane Grégoire, Véronique De Smedt, Niyazi Acar, Lionel Bretillon, Agnès Nadjar, Sophie Layé
The relative amounts of arachidonic acid (AA) and docosahexaenoic acid (DHA) govern the different functions of the brain. Their brain levels depend on structures considered, on fatty acid dietary supply and the age of animals. To have a better overview of the different models available in the literature we here compared the brain fatty acid composition in various mice models (C57BL/6J, CD1, Fat-1, SAMP8 mice) fed with different n-3 PUFA diets (deficient, balanced, enriched) in adults and aged animals. Our results demonstrated that brain AA and DHA content is 1) structure-dependent; 2) strain-specific; 3) differently affected by dietary approaches when compared to genetic model of PUFA modulation; 4) different in n-3 PUFA deficient aged C57BL6/J when compared to SAMP8 mouse model of aging...
November 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914335/studies-on-the-influence-of-%C3%AE-cyclodextrin-on-graphene-oxide-and-its-synergistic-activity-to-the-electrochemical-detection-of-nitrobenzene
#2
Murugan Velmurugan, Natarajan Karikalan, Shen-Ming Chen, Zi-Chi Dai
The impact of the β-cyclodextrin (β-CD) on the graphene oxide (GO) was considerably altered the activity of electrochemical sensors. Hence, the present study, we scrutinized the electrocatalytic determination of nitrobenzene (NB) by changing the different loading level of β-CD on GO modified electrodes. The composites were prepared by the simple ultrasonication method and characterized by UV-Visible spectroscopy, infrared spectroscopy and scanning electron microscope. Interestingly, the synergistic electrocatalytic activity was appeared for the 1...
November 10, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27909097/induction-of-migraine-like-photophobic-behavior-in-mice-by-both-peripheral-and-central-cgrp-mechanisms
#3
Bianca N Mason, Eric A Kaiser, Adisa Kuburas, Maria-Cristina M Loomis, John A Latham, Leon F Garcia-Martinez, Andrew F Russo
: The neuropeptide calcitonin gene-related peptide (CGRP) is a key player in migraine. While migraine can be treated using CGRP antagonists that act peripherally, the relevant sites of CGRP action remain unknown. To address the role of CGRP both within and outside the central nervous system, we used CGRP-induced light aversive behavior in mice as a measure of migraine-associated photophobia. Peripheral (intraperitoneal, IP) injection of CGRP resulted in light aversive behavior in wild-type CD1 mice similar to aversion previously seen following central (intracerebroventricular, ICV) injection...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27908630/non-linear-dose-response-of-aluminium-hydroxide-adjuvant-particles-selective-low-dose-neurotoxicity
#4
Guillemette Crépeaux, Housam Eidi, Marie-Odile David, Yasmine Baba-Amer, Eleni Tzavara, Bruno Giros, François-Jérôme Authier, Christopher Exley, Christopher A Shaw, Josette Cadusseau, Romain K Gherardi
Aluminium (Al) oxyhydroxide (Alhydrogel(®)), the main adjuvant licensed for human and animal vaccines, consists of primary nanoparticles that spontaneously agglomerate. Concerns about its safety emerged following recognition of its unexpectedly long-lasting biopersistence within immune cells in some individuals, and reports of chronic fatigue syndrome, cognitive dysfunction, myalgia, dysautonomia and autoimmune/inflammatory features temporally linked to multiple Al-containing vaccine administrations. Mouse experiments have documented its capture and slow transportation by monocyte-lineage cells from the injected muscle to lymphoid organs and eventually the brain...
November 28, 2016: Toxicology
https://www.readbyqxmd.com/read/27878909/role-of-mcp-1-in-pleural-effusion-development-in-a-carrageenan-induced-murine-model-of-pleurisy
#5
Sally M Lansley, Hui Min Cheah, Y C Gary Lee
BACKGROUND AND OBJECTIVE: Exudative pleural effusions affect over 1500 patients per million population each year. The pathobiology of pleural exudate formation remains unclear. Our recent study revealed monocyte chemotactic protein-1 (MCP-1) as a key driver of fibrinolytic-induced exudate effusion while another study found a role for MCP-1 in malignant effusion formation. In the present study, we further evaluated the role of MCP-1 in the development of pleural effusion in a mouse model of acute pleural inflammation...
November 22, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27873458/resveratrol-enhances-brown-adipocyte-formation-and-function-by-activating-amp-activated-protein-kinase-ampk-%C3%AE-1-in-mice-fed-high-fat-diet
#6
Songbo Wang, Xingwei Liang, Qiyuan Yang, Xing Fu, Meijun Zhu, B D Rodgers, Qingyan Jiang, Michael V Dodson, Min Du
SCOPE: Enhancing the formation and function of brown adipose tissue (BAT) increases thermogenesis and hence reduces obesity. Thus, we investigate the effects of resveratrol (Resv) on brown adipocyte formation and function in mouse interscapular BAT (iBAT). METHODS AND RESULTS: CD1 mice and stromal vascular cells (SVCs) isolated from iBAT were treated with Resv. Expression of brown adipogenic and thermogenic markers, and involvement of AMP-activated protein kinase (AMPK)α1 were assessed...
November 22, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27871995/outbred-cd1-mice-are-as-suitable-as-inbred-c57bl-6j-mice-in-performing-social-tasks
#7
Lawrence S Hsieh, John H Wen, Laura Miyares, Paul J Lombroso, Angélique Bordey
Inbred mouse strains have been used preferentially for behavioral testing over outbred counterparts, even though outbred mice reflect the genetic diversity in the human population better. Here, we compare the sociability of widely available outbred CD1 mice with the commonly used inbred C57BL/6J (C57) mice in the one-chamber social interaction test and the three-chamber sociability test. In the one-chamber task, intra-strain pairs of juvenile, non-littermate, male CD1 or C57 mice display a series of social and aggressive behaviors...
November 18, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27864464/inhibition-of-stress-fiber-formation-preserves-blood-brain-barrier-after-intracerebral-hemorrhage-in-mice
#8
Anatol Manaenko, Peng Yang, Derek Nowrangi, Enkhjargal Budbazar, Richard E Hartman, Andre Obenaus, William J Pearce, John H Zhang, Jiping Tang
*Anatol Manaenko and Peng Yang contributed equally to this work.Intracerebral hemorrhage (ICH) represents the deadliest subtype of all strokes. The development of brain edema, a consequence of blood-brain barrier (BBB) disruption, is the most life-threatening event after ICH. Pathophysiological conditions activate the endothelium, one of the components of BBB, inducing rearrangement of the actin cytoskeleton. Upon activation, globular actin assembles into a filamentous actin resulting in the formation of contractile actin bundles, stress fibers...
November 18, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27863552/generation-of-potent-porcine-monocyte-derived-dendritic-cells-modcs-by-modified-culture-protocol
#9
Teerawut Nedumpun, Patcharee Ritprajak, Sanipa Suradhat
In vitro derivation of dendritic cells (DCs) is an alternative approach to overcome the low frequency of primary DCs and the difficulty of isolation techniques for studying DC immunobiology. To date, the conventional culture protocol of porcine monocyte-derived DCs (MoDCs) has been widely used. However, this protocol is not practical due to the requirement of a substantial number of blood monocytes, and the process often interferes with DC maturation. To improve in vitro porcine MoDC generation, we modified the previous conventional DC generation protocol, based on the human and mouse primary DC culture system, and compared phenotypic and functional features of MoDCs derived from the modified protocol to the conventional protocol...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27863541/cellular-endocytic-compartment-localization-of-expressed-canine-cd1-molecules
#10
Mette Schjaerff, Stefan M Keller, Verena K Affolter, Annemarie T Kristensen, Peter F Moore
CD1 molecules are glycoproteins present primarily on dendritic cells (DCs), which recognize and present a variety of foreign- and self-lipid antigens to T-cells. Humans have five different CD1 isoforms that survey distinct cellular compartments allowing for recognition of a large repertoire of lipids. The canine CD1 family consists of seven functional CD1 molecules (canine CD1a2, CD1a6, CD1a8, CD1a9, CD1b, CD1c and CD1e) and one presumed non-functional isoform (canine CD1d) due to a disrupted gene structure...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27853423/ethanol-and-caffeine-effects-on-social-interaction-and-recognition-in-mice-involvement-of-adenosine-a2a-and-a1-receptors
#11
Laura López-Cruz, Noemí San-Miguel, Pilar Bayarri, Younis Baqi, Christa E Müller, John D Salamone, Mercé Correa
Ethanol and caffeine are frequently consumed in combination and have opposite effects on the adenosine system: ethanol metabolism leads to an increase in adenosine levels, while caffeine is a non-selective adenosine A1/A2A receptor antagonist. These receptors are highly expressed in striatum and olfactory tubercle, brain areas involved in exploration and social interaction in rodents. Ethanol modulates social interaction processes, but the role of adenosine in social behavior is still poorly understood. The present work was undertaken to study the impact of ethanol, caffeine and their combination on social behavior, and to explore the involvement of A1 and A2A receptors on those actions...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/27845264/antianxiety-activity-guided-isolation-and-characterization-of-bergenin-from-caesalpinia-digyna-rottler-roots
#12
Jitender Singh, Ashwani Kumar, Anupam Sharma
ETHNOPHARMACOLOGICAL RELEVANCE: Caesalpinia digyna Rottler (Caesalpiniaceae) roots have been used traditionally for soothing nerves, as nervine tonic and febrifuge. The aim of the present study was to isolate the antianxiety constituent(s) from C. digyna roots following bioactivity guided fractionation approach. MATERIAL AND METHODS: Bioactive fraction F4 was subjected to column chromatography to get three sub-fractions (F4.1-F4.3) and a compound CD2. CD1 and CD2 were characterized using standard spectral techniques...
November 11, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27837108/characterization-and-transcriptomic-analysis-of-porcine-blood-conventional-and-plasmacytoid-dendritic-cells-reveals-striking-species-specific-differences
#13
Gael Auray, Irene Keller, Sylvie Python, Markus Gerber, Remy Bruggmann, Nicolas Ruggli, Artur Summerfield
Porcine dendritic cells (DCs) are relatively well characterized, but a clear-cut identification of all DC subsets combined with full transcriptional profiling was lacking, preventing an unbiased insight into the functional specializations of DC subsets. Using a large panel of Abs in multicolor flow cytometry, cell sorting, and RNA sequencing we identified and characterized the porcine equivalent of conventional DCs (cDC) 1 and cDC2 as well as plasmacytoid DCs (pDCs) in the peripheral blood of pigs. We demonstrate that cDC1 are CD135(+)CD14(-)CD172a(low)CADM1(+)wCD11R1(+) cells, cDC2 are CD135(+)CD14(-)CD172a(+)CADM1(+)CD115(+)wCD11R1(+)CD1(+) cells and pDCs are CD4(+)CD135(+)CD172a(+)CD123(+)CD303(+) cells...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27835637/transcriptomic-variation-during-spermiogenesis-in-mouse-germ-cells
#14
Haiyang Zuo, Junfang Zhang, Liuguang Zhang, Xiaoxia Ren, Xiaoli Chen, Haisheng Hao, Xueming Zhao, Dong Wang
To explore variations in the transcription activity during spermiogenesis, round and elongated spermatids were collected from ICR/CD1 model mice using laser capture microdissection (LCM) and cauda epididymal sperm samples. The transcripts were sequenced using RNA-seq, and the reads were mapped to mm9. The majority of the reads (70%) in the round and elongated spermatids were mappable to known and predicted exons, but that in sperm was only 9%. The results of the distribution of reads suggested that alternative splicing was more complicated in sperm than in round and elongated spermatids...
2016: PloS One
https://www.readbyqxmd.com/read/27833003/brain-histamine-depletion-enhances-the-behavioural-sequences-complexity-of-mice-tested-in-the-open-field-partial-reversal-effect-of-the-dopamine-d2-d3-antagonist-sulpiride
#15
Andrea Santangelo, Gustavo Provensi, Alessia Costa, Patrizio Blandina, Valdo Ricca, Giuseppe Crescimanno, Maurizio Casarrubea, M Beatrice Passani
Markers of histaminergic dysregulation were found in several neuropsychiatric disorders characterized by repetitive behaviours, thoughts and stereotypies. We analysed the effect of acute histamine depletion by means of i. c.v. injections of alpha-fluoromethylhistidine, a blocker of histidine decarboxylase, on the temporal organization of motor sequences of CD1 mice behaviour in the open-field test. An ethogram encompassing 9 behavioural components was employed. Durations and frequencies were only slightly affected by treatments...
November 8, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27829476/murine-models-susceptibility-to-distinct-trypanosoma-cruzi-i-genotypes-infection
#16
Cielo M León, Marleny Montilla, Ricardo Vanegas, Maria Castillo, Edgar Parra, Juan David Ramírez
Chagas disease is a complex zoonosis that affects around 8 million people worldwide. This pathology is caused by Trypanosoma cruzi, a kinetoplastid parasite that shows tremendous genetic diversity evinced in six distinct Discrete Typing Units (TcI-TcVI) including a recent genotype named as TcBat and associated with anthropogenic bats. TcI presents a broad geographical distribution and has been associated with chronic cardiomyopathy. Recent phylogenetic studies suggest the existence of two genotypes (Domestic (TcIDom) and sylvatic TcI) within TcI...
November 10, 2016: Parasitology
https://www.readbyqxmd.com/read/27821914/spontaneous-extraskeletal-osteosarcoma-in-the-duodenum-of-a-crlj-cd1-icr-mouse
#17
Ryo Ando, Shinichiro Ikezaki, Yuko Yamaguchi, Kazutoshi Tamura, Toru Hoshiya
Extraskeletal osteosarcoma is a very rare tumor in humans and animals. This paper describes a case of extraskeletal osteosarcoma observed in the duodenum of a male ICR mouse. Grossly, a solid mass pushing up the tunica serosa was observed in the duodenal wall. Histologically, the tumor was located in the lamina propria mucosae and tela mucosa. Neoplastic cells densely proliferated in these areas, and replaced of the normal tissue components. A small amount of osteoid and a small clump of bone tissue were observed in the area of neoplastic cell proliferation, especially in the lamina propria mucosae...
October 2016: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/27814245/effects-of-periconception-cadmium-and-mercury-co-administration-to-mice-on-indices-of-chronic-disease-in-male-offspring-at-maturity
#18
Cagri Camsari, Joseph K Folger, Devin McGee, Steven J Bursian, Hongbing Wang, Jason G Knott, George W Smith
BACKGROUND: Long-term exposure to the heavy metals cadmium (Cd) and mercury (Hg) is known to increase risk of chronic diseases. However, to our knowledge, exposure to Cd and Hg beginning at the periconception period has not been studied to date. OBJECTIVE: The effect of co-administration of Cd and Hg during early development on indices of chronic diseases at adulthood was examined. METHODS: Adult female CD1 mice were subcutaneously administered a combination of cadmium chloride (CdCl2) and methylmercury (II) chloride (CH3HgCl; 0, 0...
November 4, 2016: Environmental Health Perspectives
https://www.readbyqxmd.com/read/27812009/strain-dependent-differences-in-glucocorticoid-induced-bone-loss-between-c57bl-6j-and-cd-1-mice
#19
Adel Ersek, Ana I Espirito Santo, Youridies Vattakuzhi, Saumya George, Andrew R Clark, Nicole J Horwood
We have investigated the effect of long-term glucocorticoid (GC) administration on bone turnover in two frequently used mouse strains; C57BL/6J and CD1, in order to assess the influence of their genetic background on GC-induced osteoporosis (GIO). GIO was induced in 12 weeks old female C57BL/6J and CD1 mice by subcutaneous insertion of long-term release prednisolone or placebo pellets. Biomechanical properties as assessed by three point bent testing revealed that femoral elasticity and strength significantly decreased in CD1 mice receiving GC, whereas C57BL/6J mice showed no differences between placebo and prednisolone treatment...
November 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27807341/t-cell-receptor-recognition-of-cd1b-presenting-a-mycobacterial-glycolipid
#20
Stephanie Gras, Ildiko Van Rhijn, Adam Shahine, Tan-Yun Cheng, Mugdha Bhati, Li Lynn Tan, Hanim Halim, Kathryn D Tuttle, Laurent Gapin, Jérôme Le Nours, D Branch Moody, Jamie Rossjohn
CD1 proteins present microbial lipids to T cells. Germline-encoded mycolyl lipid-reactive (GEM) T cells with conserved αβ T cell receptors (TCRs) recognize CD1b presenting mycobacterial mycolates. As the molecular basis underpinning TCR recognition of CD1b remains unknown, here we determine the structure of a GEM TCR bound to CD1b presenting glucose-6-O-monomycolate (GMM). The GEM TCR docks centrally above CD1b, whereby the conserved TCR α-chain extensively contacts CD1b and GMM. Through mutagenesis and study of T cells from tuberculosis patients, we identify a consensus CD1b footprint of TCRs present among GEM T cells...
October 27, 2016: Nature Communications
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