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https://www.readbyqxmd.com/read/28800777/bortezomib-treatment-induces-a-higher-mortality-rate-in-lupus-model-mice-with-a-higher-disease-activity
#1
Tomoko Ikeda, Hiroshi Fujii, Masato Nose, Yukiko Kamogawa, Tsuyoshi Shirai, Yuko Shirota, Tomonori Ishii, Hideo Harigae
BACKGROUND: Bortezomib (Bz) is a proteasome inhibitor that directly targets antibody-producing plasma cells. We recently reported the first randomized control trial that evaluated the effects of Bz in patients with systemic lupus erythematosus (SLE). In that study, we demonstrated that Bz treatment is associated with many adverse reactions in patients with refractory disease. In the present study, we examine the therapeutic and toxic effects of Bz on MRL/MpJ-lpr/lpr (MRL/lpr) mice with severe disease activity...
August 11, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28758427/genome-wide-dna-methylation-profiling-of-the-regenerative-mrl-mpj-mouse-and-two-normal-strains
#2
Bartosz Górnikiewicz, Anna Ronowicz, Piotr Madanecki, Paweł Sachadyn
AIM: We aimed to identify the pivotal differences in the DNA methylation profiles between the regeneration capable MRL/MpJ mouse and reference mouse strains. MATERIALS & METHODS: Global DNA methylation profiling was performed in ear pinnae, bone marrow, spleen, liver and heart from uninjured adult females of the MRL/MpJ and C57BL/6J and BALB/c. RESULTS & CONCLUSION: A number of differentially methylated regions (DMRs) distinguishing between the MRL/MpJ mouse and both references were identified...
July 31, 2017: Epigenomics
https://www.readbyqxmd.com/read/28665157/sex-related-differences-in-autoimmune-induced-lung-lesions-in-mrl-mpj-fas-lpr-mice-are-mediated-by-the-development-of-mediastinal-fat-associated-lymphoid-clusters
#3
Yaser Hosny Ali Elewa, Osamu Ichii, Yasuhiro Kon
MRL/MpJ-Fas(lpr) (lpr) mice are a model for autoimmune diseases such as systemic lupus erythematosus (SLE). These diseases mainly affect women, with a 10:1 female-to-male ratio, and cause pleuropulmonary lesions. We previously revealed a correlation between mediastinal fat-associated lymphoid cluster (MFALC) development and cellular infiltration in the lungs of lpr male mice; however, we did not report on MFALCs in females. The purpose of this investigation was to reveal sex-related differences in MFALCs in lpr mice...
June 30, 2017: Autoimmunity
https://www.readbyqxmd.com/read/28566018/autoimmune-abnormality-affects-ovulation-and-oocyte-pick-up-in-mrl-mpj-fas-lpr-lpr-mice
#4
M Hosotani, O Ichii, T Nakamura, S Otsuka-Kanazawa, Y Hosny Ali Elewa, Y Kon
Ovulation and oocyte-pick-up are essential processes in fertilization. Herein, we found associations between autoimmune disease and the aforementioned processes in mice. At three and six months, along with the evaluation of autoimmune disease indices, the ovary, mesosalpinx, and oviducts were histologically examined in C57BL/6, MRL/MpJ, and MRL/MpJ-Fas (lpr/lpr) mice as healthy control, mild and severe models of autoimmune disease, respectively. In superovulated mice, the number of "oocyte cumulus complexes" found in the ampulla was macroscopically counted, and that of "ovulated oocytes" was histologically evaluated, as indicated by ruptured follicles or corpora hemorrhagica in ovaries...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28530484/in%C3%A2-vivo-geometry-of-the-kissing-stent-and-covered-endovascular-reconstruction-of-the-aortic-bifurcation-configurations-in-aortoiliac-occlusive-disease
#5
Erik Groot Jebbink, Thijs G Ter Mors, Cornelis H Slump, Robert H Geelkerken, Suzanne Holewijn, Michel Mpj Reijnen
Objectives Various configurations of kissing stent (KS) configurations exist and patency rates vary. In response the covered endovascular reconstruction of the aortic bifurcation configuration was designed to minimize mismatch and improve outcome. The aim of the current study is to compare geometrical mismatch of kissing stent with the covered endovascular reconstruction of the aortic bifurcation configuration in vivo. Methods Post-operative computed tomographic data and patient demographics from 11 covered endovascular reconstruction of the aortic bifurcation and 11 matched kissing stent patients were included...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28407315/drugs-with-antidepressant-properties-affect-tryptophan-metabolites-differently-in-rodent-models-with-depression-like-behavior
#6
Amanda Eskelund, Yan Li, David P Budac, Heidi K Müller, Maria Gulinello, Connie Sanchez, Gregers Wegener
The metabolism of tryptophan through kynurenine and serotonin pathways is linked to depression. Here, effects of different drugs with antidepressant properties (vortioxetine, fluoxetine, and ketamine) on various tryptophan metabolites in different brain regions and plasma were examined using tandem mass spectrometry (LC-MS/MS), in Flinders Sensitive Line rats, a genetic rat model of depression, and its controls: Flinders Sensitive Line and Sprague-Dawley rats. Protein levels of kynurenine pathway enzymes were measured in the brains and livers of these rat strains...
July 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28381312/influence-of-chronic-exposure-to-simulated-shift-work-on-disease-and-longevity-in-disease-prone-inbred-mice
#7
Linda A Toth, Rita A Trammell, Teresa Liberati, Steve Verhulst, Marcia L Hart, Jacob E Moskowitz, Craig Franklin
Shift work (SW) is viewed as a risk factor for the development of many serious health conditions, yet prospective studies that document such risks are rare. The current study addressed this void by testing the hypothesis that long-term exposure to repeated diurnal phase shifts, mimicking SW, will accelerate disease onset or death in inbred mice with genetic risk of developing cancer, diabetes, or autoimmune disease. The data indicate that 1) life-long exposure to simulated SW accelerates death in female cancerprone AKR/J mice; 2) a significant proportion of male NON/ShiLtJ mice, which have impaired glucose tolerance but do not normally progress to type 2 diabetes, develop hyperglycemia, consistent with diabetes (that is, blood glucose 250 mg/dL or greater) after exposure to simulated SW for 8 wk; and 3) MRL/MpJ mice, which are prone to develop autoimmune disease, showed sex-related acceleration of disease development when exposed to SW as compared with mice maintained on a stable photocycle...
March 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28337953/influence-of-chronic-exposure-to-simulated-shift-work-on-disease-and-longevity-in-disease-prone-inbred-mice
#8
Linda A Toth Rita A Trammell Teresa Liberati Steve Verhulst Marcia L Hart Jacob E Moskowitz And Craig Franklin
Shift work (SW) is viewed as a risk factor for the development of many serious health conditions, yet prospective studies thatdocument such risks are rare. The current study addressed this void by testing the hypothesis that long-term exposure to repeated diurnal phase shifts, mimicking SW, will accelerate disease onset or death in inbred mice with genetic risk of developing cancer,diabetes, or autoimmune disease. The data indicate that 1) life-long exposure to simulated SW accelerates death in female cancerprone AKR/J mice; 2) a significant proportion of male NON/ShiLtJ mice, which have impaired glucose tolerance but do not normally progress to type 2 diabetes, develop hyperglycemia, consistent with diabetes (that is, blood glucose 250 mg/dL or greater) after exposure to simulated SW for 8 wk; and 3) MRL/MpJ mice, which are prone to develop autoimmune disease, showed sex-related acceleration of disease development when exposed to SW as compared with mice maintained on a stable photocycle...
March 23, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28316904/management-of-osteoporotic-and-neuropathic-ankle-fractures-in-the-elderly
#9
REVIEW
P Hoogervorst, Cja Van Bergen, Mpj Van den Bekerom
PURPOSE OF REVIEW: Treatment of osteoporotic and neuropathic ankle fractures in the elderly is challenging. The purpose of this paper is to review recent publications on this topic and to identify the optimal treatment for these fractures. RECENT FINDINGS: Treatment consists of a variety of conservative or operative options all with advantages and disadvantages as described in this review. Little research has been published that specifically focuses on elderly patients with ankle fractures...
2017: Current Geriatrics Reports
https://www.readbyqxmd.com/read/28149210/tethering-the-extensor-apparatus-limits-pip-flexion-following-k-wire-placement-for-pinning-extra-articular-fractures-at-the-base-of-the-proximal-phalanx
#10
Yaron Sela, Caitlin Peterson, Mark E Baratz
Background: Closed reduction with percutaneous Kirschner wires (K-wires) is the most minimally invasive surgical option for stabilizing phalanx fractures. This study examines the effect of K-wire placement on proximal interphalangeal (PIP) joint motion. Methods: PIP joint flexion was measured in the digits of 4 fresh-frozen cadaver hands after placing a suture loop through the flexor tendons and placing tension on the flexors via a mechanical scale. The load necessary to flex the PIP joint to 90° or to maximum flexion was recorded...
December 2016: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28140654/genome-wide-methylation-analysis-identifies-novel-cpg-loci-for-perimembranous-ventricular-septal-defects-in-human
#11
Kim Pj Wijnands, Jun Chen, Liming Liang, Michael Mpj Verbiest, Xihong Lin, Willem A Helbing, Adriana C Gittenberger-de Groot, Peter J van der Spek, André G Uitterlinden, Régine Pm Steegers-Theunissen
AIM: Congenital heart diseases are the most common birth defects worldwide and leading cause of infant mortality. The perimembranous ventricular septal defect is most prevalent. Epigenetics may provide an underlying mechanism of the gene-environment interactions involved. MATERIALS & METHODS: We examined epigenome-wide DNA methylation using the Illumina HumanMethylation450 BeadChip in 84 case children and 196 control children. RESULTS: We identified differential methylation of a CpG locus (cg17001566) within the PRDM16 gene after Bonferroni correction (p = 9...
March 2017: Epigenomics
https://www.readbyqxmd.com/read/28050816/-knuckle-cracking-can-blinded-observers-detect-changes-with-physical-examination-and-sonography
#12
COMPARATIVE STUDY
Robert D Boutin, Anuj P Netto, David Nakamura, Cyrus Bateni, Robert M Szabo, Michael Cronan, Brent Foster, William R Barfield, J Anthony Seibert, Abhijit J Chaudhari
BACKGROUND: Voluntary knuckle cracking is a common habit, with a reported prevalence of 25% to 45%. Habitual knuckle cracking also is a frequent source of questions for physicians, and the largest study to date reported an association with functional hand impairments. QUESTIONS/PURPOSES: (1) When compared with subjects who are not habitual knuckle crackers, do habitual knuckle crackers have greater QuickDASH scores, swelling, weakness, joint laxity, or ROM? (2) In subjects who crack their knuckles, does cracking immediately increase ROM? (3) What are the characteristic sonographic findings in joints that crack? METHODS: A prospective, institutional review board-approved study was performed on 400 metacarpophalangeal joints (MPJs) in 40 asymptomatic adult subjects...
April 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28010137/hydronephrosis-with-ureteritis-developed-in-c57bl-6n-mice-carrying-the-congenic-region-derived-from-mrl-mpj-type-chromosome-11
#13
Osamu Ichii, Masataka Chihara, Shin-Hyo Lee, Teppei Nakamura, Saori Otsuka-Kanazawa, Taro Horino, Yaser Hosny Ali Elewa, Yasuhiro Kon
Inbred MRL/MpJ mice show several unique phenotypes in tissue regeneration processes and the urogenital and immune systems. Clarifying the genetic and molecular bases of these phenotypes requires the analysis of their genetic susceptibility locus. Herein, hydronephrosis development was incidentally observed in MRL/MpJ-derived chromosome 11 (D11Mit21-212)-carrying C57BL/6N-based congenic mice, which developed bilateral or unilateral hydronephrosis in both males and females with 23.5% and 12.5% prevalence, respectively...
December 23, 2016: Autoimmunity
https://www.readbyqxmd.com/read/27913980/complete-nucleotide-sequences-and-construction-of-full-length-infectious-cdna-clones-of-cucumber-green-mottle-mosaic-virus-cgmmv-in-a-versatile-newly-developed-binary-vector-including-both-35s-and-t7-promoters
#14
Chan-Hwan Park, Hye-Kyoung Ju, Jae-Yeong Han, Jong-Seo Park, Ik-Hyun Kim, Eun-Young Seo, Jung-Kyu Kim, John Hammond, Hyoun-Sub Lim
Seed-transmitted viruses have caused significant damage to watermelon crops in Korea in recent years, with cucumber green mottle mosaic virus (CGMMV) infection widespread as a result of infected seed lots. To determine the likely origin of CGMMV infection, we collected CGMMV isolates from watermelon and melon fields and generated full-length infectious cDNA clones. The full-length cDNAs were cloned into newly constructed binary vector pJY, which includes both the 35S and T7 promoters for versatile usage (agroinfiltration and in vitro RNA transcription) and a modified hepatitis delta virus ribozyme sequence to precisely cleave RNA transcripts at the 3' end of the tobamovirus genome...
April 2017: Virus Genes
https://www.readbyqxmd.com/read/27728949/fenestrated-endografts-for-complex-abdominal-aortic-aneurysm-repair
#15
Arne de Niet, Michel Mpj Reijnen, Ignace Fj Tielliu, Jan Willem Hp Lardenoije, Clark J Zeebregts
Since the introduction of fenestrated endovascular aneurysm repair (FEVAR) in 1996, great advances have been made in endograft development. Custom-made and off-the-shelf fenestrated and branched endografts have been used to treat patients with complex abdominal aortic and thoraco-abdominal aneurysms. Most experience has been gained with the Cook Zenith® fenestrated endograft (Cook Medical Inc., Limerick, Ireland). The Cook Zenith® endograft is customized with fenestrations, (fixed) inner or outer branches, or a combination of them, to cover a wide range of complex aneurysms...
October 26, 2016: Surgical Technology International
https://www.readbyqxmd.com/read/27665270/contribution-of-secondary-igkappa-rearrangement-to-primary-immunoglobulin-repertoire-diversification
#16
Shufang Li, Wei Liu, Yinghui Li, Shaorong Zhao, Can Liu, Mengyun Hu, Wei Yue, Yanhua Liu, Yue Wang, Rongcun Yang, Rong Xiang, Feifei Liu
Abs reactive to DNA and DNA/histone complexes are a distinguished characteristic of primary immunoglobulin repertoires in autoimmune B6.MRL-Fas(lpr) and MRL/MpJ-Fas(lpr) mice. These mice are defective in Fas receptor, which is critical for the apoptosis of autoreactive B cells by an extrinsic pathway. In the present study, we explored the possibility that bone marrow small pre-B and immature B cells from adult B6.MRL-Fas(lpr) mice and MRL/MpJ-Fas(lpr) mice respectively, which contain autoreactive B-cell antigen receptors (BCR) and manifest autoimmune syndromes, exhibit enhanced receptor editing patterns...
October 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27604104/strain-differences-in-the-proteome-of-dioxin-sensitive-and-dioxin-resistant-mice-treated-with-2-3-7-8-tetrabromodibenzo-p-dioxin
#17
Hoa Thanh Nguyen, Maria Claret Lauan Tsuchiya, Jean Yoo, Midori Iida, Tetsuro Agusa, Masashi Hirano, Eun-Young Kim, Tatsuhiko Miyazaki, Masato Nose, Hisato Iwata
Dioxins cause various toxic effects through the aryl hydrocarbon receptor (AHR) in vertebrates, with dramatic species and strain differences in susceptibility. Although inbred mouse strains C3H/HeJ-lpr/lpr (C3H/lpr) and MRL/MpJ-lpr/lpr (MRL/lpr) are known as dioxin-sensitive and dioxin-resistant mice, respectively, the molecular mechanism underlying this difference remains unclear. The difference in the hepatic proteome of the two mouse strains treated with vehicle or 2,3,7,8-tetrabromodibenzo-p-dioxin (TBDD) was investigated by a proteomic approach of two-dimensional electrophoresis (2-DE) coupled with matrix-assisted laser desorption/ionization time-of-flight/time-of-flight tandem mass spectrometry (MALDI-TOF/TOF)...
September 7, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27586091/the-nellix%C3%A2-endovascular-sealing-system-in-patients-with-abdominal-aortic-aneurysms-in-conjunction-with-iliac-artery-occlusive-disease
#18
Steven Mm van Sterkenburg, Leo H van den Ham, Luuk Smeets, Jan-Willem Lardenoije, Michel Mpj Reijnen
Introduction Concomitant abdominal aortic aneurysm formation and aortoiliac occlusive disease is a challenging combination, often requiring open reconstructive surgery. In this study, we have assessed a single center experience of the Nellix EndoVascular Aneurysm Sealing System in the treatment of an abdominal aortic aneurysm in conjunction with iliac artery occlusive disease. Methods Retrospectively case files of patients treated with Nellix EndoVascular Aneurysm Sealing System in a single center were reviewed...
April 2017: Vascular
https://www.readbyqxmd.com/read/27552106/the-lg-j-murine-strain-exhibits-near-normal-tendon-biomechanical-properties-following-a-full-length-central-patellar-tendon-defect
#19
Jessica R Arble, Andrea L Lalley, Nathaniel A Dyment, Pujan Joshi, Dong-Guk Shin, Cynthia Gooch, Brian Grawe, David Rowe, Jason T Shearn
PURPOSE OF THE STUDY: Identifying biological success criteria is needed to improve therapies, and one strategy for identifying them is to analyze the RNA transcriptome for successful and unsuccessful models of tendon healing. We have characterized the MRL/MpJ murine strain and found improved mechanical outcomes following a central patellar tendon (PT) injury. In this study, we evaluate the healing of the LG/J murine strain, which comprises 75% of the MRL/MpJ background, to determine if the LG/J also exhibits improved biomechanical properties following injury and to determine differentially expressed transcription factors across the C57BL/6, MRL/MpJ and the LG/J strains during the early stages of healing...
November 2016: Connective Tissue Research
https://www.readbyqxmd.com/read/27475620/is-passive-metatarsophalangeal-joint-stiffness-related-to-leg-stiffness-vertical-stiffness-and-running-economy-during-sub-maximal-running
#20
Hok Sum Man, Wing Kai Lam, Justin Lee, Catherine M Capio, Aaron Kam Lun Leung
This study examined whether passive metatarsophalangeal joints (MPJ) stiffness was associated with leg stiffness (Kleg) vertical stiffness (Kvert) and running economy (RE) during sub-maximal running. Nine male experienced runners underwent passive MPJ stiffness measurements in standing and sitting positions followed by sub-maximal running on an instrumented treadmill. With the individual foot position properly aligned, the MPJ passive stiffness in both sitting (MPJsit) and standing positions (MPJstand) were measured with a computerized dynamometer...
September 2016: Gait & Posture
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