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https://www.readbyqxmd.com/read/28533177/immunohistochemical-comparison-of-astrocytic-mglur5-upregulation-in-infraorbital-nerve-versus-sciatic-nerve-ligated-rat
#1
Benoit Michot, Ronald Deumens, Emmanuel Hermans
The differential pharmacological responsiveness of cephalic and extra-cephalic neuropathic pain has been proposed to relate to distinct mechanisms that may involve neuroinflammatory reactions mediated by glial cells. Astrocytes are particularly important for neuronal sensitization in neuropathic pain, in part through modulation of glutamatergic transmission. Because the metabotropic glutamate receptor 5 (mGluR5) is involved in the astrocytic regulation of the glutamatergic system, we investigated modifications of its expression in models of cephalic versus extra-cephalic neuropathic pain...
May 19, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28528422/5-ala-fluorescence-guided-endoscopic-surgery-for-mixed-germ-cell-tumors
#2
Junichi Takeda, Masahiro Nonaka, Yi Li, Yumiko Komori, Takamasa Kamei, Ryoichi Iwata, Tetsuo Hashiba, Kunikazu Yoshimura, Akio Asai
5-Aminolevulinic acid (5-ALA) fluorescence-guided surgery is widely used for detection and planning of resection of malignant gliomas and other brain tumors. However, no reports have described 5-ALA fluorescence-guided surgery or direct visualization of germ cell tumors. Here, we report two cases of germ cell tumors in which a positive 5-ALA fluorescent signal was visualized with a neuroendoscope. Both cases had a tumor in the pineal region that was associated with hydrocephalus. The patients underwent surgery after administration of 5-ALA...
May 20, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28525305/clinical-impact-of-the-cell-of-origin-classification-and-the-myc-bcl2-dual-expresser-status-in-diffuse-large-b-cell-lymphoma-treated-within-prospective-clinical-trials-of-the-german-high-grade-non-hodgkin-s-lymphoma-study-group
#3
Annette M Staiger, Marita Ziepert, Heike Horn, David W Scott, Thomas F E Barth, Heinz-Wolfram Bernd, Alfred C Feller, Wolfram Klapper, Monika Szczepanowski, Michael Hummel, Harald Stein, Dido Lenze, Martin-Leo Hansmann, Sylvia Hartmann, Peter Möller, Sergio Cogliatti, Georg Lenz, Lorenz Trümper, Markus Löffler, Norbert Schmitz, Michael Pfreundschuh, Andreas Rosenwald, German Ott
Purpose To explore the prognostic impact and interdependence of the cell-of-origin (COO) classification, dual expression (DE) of MYC and BCL2 proteins, and MYC, BCL2, and BCL6 translocations in two prospectively randomized clinical trials of patients with diffuse large B-cell lymphoma (DLBCL). Patients and Methods Overall, 452 formalin-fixed paraffin-embedded samples from two prospective, randomized DLBCL trials (RICOVER-60, prospective, randomized study for patients > 60 years, all IPI groups; and R-MegaCHOEP, prospective, randomized study for patients ≤ 60 years with age-adjusted IPI 2,3) of the German High-Grade Non-Hodgkin Lymphoma Study Group were analyzed with the Lymph2Cx assay for COO classification, with immunohistochemistry for MYC and BCL2, and with fluorescent in situ hybridization for MYC, BCL2, and BCL6 rearrangements...
May 19, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28524374/possible-role-of-the-myelinated-neural-network-in-the-parietal-peritoneum-in-rats-as-a-mechanoreceptor
#4
Koichi Tanaka, Sachi Kuwahara-Otani, Seishi Maeda, Yusuke Minato, Hideshi Yagi
A network of myelinated nerve fibers in the peritoneum covers the abdominal wall. We studied the topographic distribution of this network, explored the fibers' destination in the central nervous system, and examined the markers in these fibers in order to identify the nature of the sensation conveyed by the network of nerve fibers in rats. We used Sihler's method, which stains myelinated fibers in whole mount materials, and observed a dense nerve network and endings toward the peritoneal cavity in the peritoneum that covers the abdomen's lateral bulge...
May 19, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28522910/comparison-of-the-analgesic-effects-between-electro-acupuncture-and-moxibustion-with-visceral-hypersensitivity-rats-in-irritable-bowel-syndrome
#5
Ji-Meng Zhao, Liang Li, Liu Chen, Yin Shi, Yu-Wei Li, Hai-Xia Shang, Lu-Yi Wu, Zhi-Jun Weng, Chun-Hui Bao, Huan-Gan Wu
AIM: To observe whether there are differences in the effects of electro-acupuncture (EA) and moxibustion (Mox) in rats with visceral hypersensitivity. METHODS: EA at 1 mA and 3 mA and Mox at 43 °C and 46 °C were applied to the Shangjuxu (ST37, bilateral) acupoints in model rats with visceral hypersensitivity. Responses of wide dynamic range neurons in dorsal horns of the spinal cord were observed through the extracellular recordings. Mast cells (MC) activity in the colons of rats were assessed, and 5-hydroxytryptamine (5-HT), 5-hydroxytryptamine 3 receptor (5-HT3R) and 5-HT4R expressions in the colons were measured...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28516219/decreased-sensory-nerve-excitation-and-bone-pain-associated-with-mouse-lewis-lung-cancer-in-trpv1-deficient-mice
#6
Hiroki Wakabayashi, Satoshi Wakisaka, Toru Hiraga, Kenji Hata, Riko Nishimura, Makoto Tominaga, Toshiyuki Yoneda
Bone pain is one of the most common and life-limiting complications of cancer metastasis to bone. Although the mechanism of bone pain still remains poorly understood, bone pain is evoked as a consequence of sensitization and excitation of sensory nerves (SNs) innervating bone by noxious stimuli produced in the microenvironment of bone metastases. We showed that bone is innervated by calcitonin gene-related protein (CGRP)(+) SNs extending from dorsal root ganglia (DRG), the cell body of SNs, in mice. Mice intratibially injected with Lewis lung cancer (LLC) cells showed progressive bone pain evaluated by mechanical allodynia and flinching with increased CGRP(+) SNs in bone and augmented SN excitation in DRG as indicated by elevated numbers of pERK- and pCREB-immunoreactive neurons...
May 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28515460/chlamydia-trachomatis-infection-of-human-endometrial-stromal-cells-induces-defective-decidualisation-and-chemokine-release
#7
Sevi Giakoumelou, Nick Wheelhouse, Jeremy Brown, Jean Wade, Ioannis Simitsidellis, Douglas Gibson, Philippa T K Saunders, Patrick Horner, Gary Entrican, Sarah E M Howie, Andrew W Horne
Miscarriage affects ~20% of pregnancies and maternal infections account for ~15% of early miscarriages. Chlamydia trachomatis (Ct) has been associated with miscarriage but the underlying mechanisms are unknown. Successful implantation requires endometrial stromal cell (ESC) decidualisation. Maintenance of pregnancy requires angiogenesis, establishment of the correct cellular milieu and trophoblast invasion, all of which involve the action of chemokines. Our objective was to determine whether Ct infection impacts upon ESC decidualisation and chemokine secretion...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28498716/chronotype-distribution-in-professional-rugby-players-evidence-for-the-environment-hypothesis
#8
Lovemore Kunorozva, Dale E Rae, Laura C Roden
Individual sport athletes have been shown to comprise unusually high proportions of morning-types (MTs) coupled with a higher prevalence of the morningness-associated PERIOD3 variable number tandem repeat (VNTR) allele, PER3(5). The degree to which type of sport selected is influenced by either chronotype or genotype, or the extent to which sporting environment contributes to chronotype is unclear. The aim of this study was to assess chronotype and PER3 VNTR polymorphism frequencies in team sport players and non-athletic controls...
May 12, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28496100/structure-and-function-of-a-broad-specificity-chitin-deacetylase-from-aspergillus-nidulans-fgsc-a4
#9
Zhanliang Liu, Laurie M Gay, Tina R Tuveng, Jane W Agger, Bjørge Westereng, Geir Mathiesen, Svein J Horn, Gustav Vaaje-Kolstad, Daan M F van Aalten, Vincent G H Eijsink
Enzymatic conversion of chitin, a β-1,4 linked polymer of N-acetylglucosamine, is of major interest in areas varying from the biorefining of chitin-rich waste streams to understanding how medically relevant fungi remodel their chitin-containing cell walls. Although numerous chitinolytic enzymes have been studied in detail, relatively little is known about enzymes capable of deacetylating chitin. We describe the structural and functional characterization of a 237 residue deacetylase (AnCDA) from Aspergillus nidulans FGSC A4...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28495518/prenatal-exposure-to-low-dose-diclofenac-sodium-does-not-affect-total-neuron-numbers-in-spinal-segment-t13-in-rats
#10
Murat Çetin Ragbetli, Mikail Kara, Neşe Çölçimen, Necat Koyun, Gamze Çakmak, Veysel Akyol, Omur Gulsum Deniz, Kıymet Kübra Yurt
The main purpose of the present study was to investigate the effects of diclofenac sodium (DS) on the total number of neurons in segment T13 of the spinal cord of offspring of pregnant rats using stereological methods. Eighteen adult female Wistar albino rats weighing 150-200g were used. Pregnant female rats were divided into three groups; a control group, a sham group and a DS (1mg/kg, intramuscular) exposed group. The DS and sham groups received injection from the 5(th) day of gestation to the 19(th). 28 days after birth, the offspring rats were perfused with 4% buffered formalin...
May 8, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28488374/corrigendum-characterization-of-a-cell-penetrating-peptide-with-potential-anticancer-activity
#11
Anja Gronewold, Mareike Horn, Ivan Ranđelović, József Tóvári, Sergio Muñoz Vázquez, Klaus Schomäcker, Ines Neundorf
No abstract text is available yet for this article.
May 9, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28473192/characterization-of-a-cerebral-palsy-like-model-in-rats-analysis-of-gait-pattern-and-of-brain-and-spinal-cord-motor-areas
#12
Adriana Souza Dos Santos, Wellington de Almeida, Bruno Popik, Bruno Marques Sbardelotto, Márcia Miranda Torrejais, Marcelo Alves de Souza, Lígia Aline Centenaro
In an attempt to propose an animal model that reproduces in rats the phenotype of cerebral palsy, this study evaluated the effects of maternal exposure to bacterial endotoxin associated with perinatal asphyxia and sensorimotor restriction on gait pattern, brain and spinal cord morphology. Two experimental groups were used: Control Group (CTG) - offspring of rats injected with saline during pregnancy and Cerebral Palsy Group (CPG) - offspring of rats injected with lipopolysaccharide during pregnancy, submitted to perinatal asphyxia and sensorimotor restriction for 30days...
May 1, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28471417/protease-expression-levels-in-prostate-cancer-tissue-can-explain-prostate-cancer-associated-seminal-biomarkers-an-explorative-concept-study
#13
Jochen Neuhaus, Eric Schiffer, Ferdinando Mannello, Lars-Christian Horn, Roman Ganzer, Jens-Uwe Stolzenburg
Previously, we described prostate cancer (PCa) detection (83% sensitivity; 67% specificity) in seminal plasma by CE-MS/MS. Moreover, advanced disease was distinguished from organ-confined tumors with 80% sensitivity and 82% specificity. The discovered biomarkers were naturally occurring fragments of larger seminal proteins, predominantly semenogelin 1 and 2, representing endpoints of the ejaculate liquefaction. Here we identified proteases putatively involved in PCa specific protein cleavage, and examined gene expression and tissue protein levels, jointly with cell localization in normal prostate (nP), benign prostate hyperplasia (BPH), seminal vesicles and PCa using qPCR, Western blotting and confocal laser scanning microscopy...
May 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28463648/a-functional-tollip-variant-is-associated-with-bcg-specific-immune-responses-and-tuberculosis
#14
Javeed A Shah, Munyaradzi Musvosvi, Muki Shey, David J Horne, Richard D Wells, Glenna J Peterson, Jeffery S Cox, Michelle Daya, Eileen G Hoal, Lin Lin, Raphael Gottardo, Willem A Hanekom, Thomas J Scriba, Mark Hatherill, Thomas R Hawn
RATIONALE: The molecular mechanisms that regulate tuberculosis susceptibility and BCG-induced immunity are mostly unknown. However, induction of the adaptive immune response is a critical step in host control of M. tuberculosis. TOLLIP is a ubiquitin-binding protein that regulates innate immune responses, including TLR signaling, which initiate adaptive immunity. TOLLIP variation is associated with susceptibility to tuberculosis, but the mechanism by which it regulates tuberculosis immunity is poorly understood...
May 2, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28458625/sterile-pyometra-in-two-dogs
#15
Hun-Young Yoon, Jae-Young Byun, Kang-Hyo Park, Byong-Su Min, Jung-Hyun Kim
Two young dogs were referred to the Veterinary Medical Teaching Hospital of Konkuk University, one for examination of vaginal discharge and the other after being hit by a car. Dog 1 exhibited a high neutrophil count on Gram-stained vaginal smears, marked leukocytosis on a complete blood count, and uterine enlargement on ultrasonography. In dog 2, a markedly enlarged right uterine horn containing echogenic debris was found incidentally on ultrasonography. A tentative diagnosis of pyometra was made in both cases and ovariohysterectomy was performed...
April 2017: Immune Network
https://www.readbyqxmd.com/read/28455213/localization-of-zinc-transporters-in-the-spinal-cord-of-cynomolgus-monkey
#16
Ni Zong, Shi-Xin Ma, Zhan-You Wang
Zinc is abundant in the spinal cord, where it participates in several physiological and pathophysiological processes, including neurotransmission, spinal cord injury, and amyotrophic lateral sclerosis. However, the mechanisms underlying zinc homeostasis in the spinal cord are largely unknown. Zinc transporters (ZnTs) are responsible for transporting zinc from the cytoplasm to the extracellular space or to intracellular compartments. In the present study, we examined the distribution of ZnT1-10 proteins in the spinal cord of cynomolgus monkey...
April 25, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28454648/the-siglec14-null-allele-is-associated-with-mycobacterium-tuberculosis-and-bcg-induced-clinical-and-immunologic-outcomes
#17
Andrew D Graustein, David J Horne, Jerry J Fong, Flavio Schwarz, Heather C Mefford, Glenna J Peterson, Richard D Wells, Munyaradzi Musvosvi, Muki Shey, Willem A Hanekom, Mark Hatherill, Thomas J Scriba, Nguyen Thuy Thuong Thuong, Nguyen Thi Hoang Mai, Maxine Caws, Nguyen Duc Bang, Sarah J Dunstan, Guy E Thwaites, Ajit Varki, Takashi Angata, Thomas R Hawn
Humans exposed to Mycobacterium tuberculosis (Mtb) have variable susceptibility to tuberculosis (TB) and its outcomes. Siglec-5 and Siglec-14 are members of the sialic-acid binding lectin family that regulate immune responses to pathogens through inhibitory (Siglec-5) and activating (Siglec-14) domains. The SIGLEC14 coding sequence is deleted in a high proportion of individuals, placing a SIGLEC5-like gene under the expression of the SIGLEC14 promoter (the SIGLEC14 null allele) and causing expression of a Siglec-5 like protein in monocytes and macrophages...
May 2017: Tuberculosis
https://www.readbyqxmd.com/read/28451639/microglial-tnf%C3%AE-induces-cox2-and-pgi2-synthase-expression-in-spinal-endothelial-cells-during-neuropathic-pain
#18
Hirosato Kanda, Kimiko Kobayashi, Hiroki Yamanaka, Masamichi Okubo, Koichi Noguchi
Prostaglandins (PGs) are typical lipid mediators that play a role in homeostasis and disease. They are synthesized from arachidonic acid by cyclooxygenase 1 (COX1) and COX2. Although COX2 has been reported to be upregulated in the spinal cord after nerve injury, its expression and functional roles in neuropathic pain remain unclear. In this study, we investigated the expression of Cox2, PGI2 synthase (Pgis), and prostaglandin I2 receptor (IP receptor) mRNA in the rat spinal cord after spared nerve injury (SNI)...
March 2017: ENeuro
https://www.readbyqxmd.com/read/28450050/transgenic-human-embryonic-stem-cells-overexpressing-fgf2-stimulate-neuroprotection-following-spinal-cord-ventral-root-avulsion
#19
Marta Rocha Araújo, Sergiy Kyrylenko, Aline Barroso Spejo, Mateus Vidigal Castro, Rui Seabra Ferreira Junior, Benedito Barraviera, Alexandre Leite Rodrigues Oliveira
Ventral root avulsion (VRA) triggers a strong glial reaction which contributes to neuronal loss, as well as to synaptic detachment. To overcome the degenerative effects of VRA, treatments with neurotrophic factors and stem cells have been proposed. Thus, we investigated neuroprotection elicited by human embryonic stem cells (hESC), modified to overexpress a human fibroblast growth factor 2 (FGF-2), on motoneurons subjected to VRA. Lewis rats were submitted to VRA (L4-L6) and hESC/FGF-2 were applied to the injury site using a fibrin scaffold...
April 24, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28446678/differential-involvement-during-latent-hsv-1-infection-of-the-superior-and-inferior-divisions-of-the-vestibular-ganglia-implications-for-vestibular-neuritis
#20
Susanne Himmelein, Anja Lindemann, Inga Sinicina, Anja K E Horn, Thomas Brandt, Michael Strupp, Katharina Hüfner
Controversy still surrounds both the etiology and pathophysiology of vestibular neuritis (VN). Especially uncertain is why the superior vestibular nerve (SVN) is more frequently affected than the inferior part (IVN), which is partially or totally spared. To address this question we developed an improved method for preparing human vestibular ganglia (VG) and nerve. Subsequently macro- and micro-anatomical as well as PCR studies were performed on 38 human ganglia from 38 individuals. The SVN was 2.4 mm longer than the IVN, and in 65% of the cases the IVN ran in two separate bony canals, which was not the case for the SVN...
April 26, 2017: Journal of Virology
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