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https://www.readbyqxmd.com/read/29039226/reconstruction-of-traumatic-dorsal-loss-of-the-thumb-four-different-surgical-approaches
#1
Roberto Adani, Raffaele Mugnai, Giovanna Petrella
BACKGROUND: This article outlines our methods for thumb reconstruction following dorsal skin loss injury located between the metacarpophalangeal joint (MPj) and the entire nail affecting skin, nail, tendon, and bone in different combinations but with intact sensate palmar skin. METHODS: Between 1990 and 2015, 24 patients were treated for dorsal thumb defects using 4 different surgical techniques. Five cases of dorsal compound traumatic loss were reconstructed by custom-made dorsal great toe transfer...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28936588/technical-details-and-results-of-a-modified-end-to-side-technique-of-pancreatojejunostomy-a-personal-series-of-100-patients
#2
Luca Morelli, Gregorio Di Franco, Simone Guadagni, Matteo Palmeri, Niccolò Furbetta, Desirée Gianardi, Marco Del Chiaro, Giulio Di Candio, Franco Mosca
BACKGROUND: The treatment of pancreatic stump is a critical step of pancreatoduodenectomy (PD) because leaks from this anastomosis incur major morbidity and mortality. We describe the technical details of a modified end-to-side pancreatojejunostomy (mPJ), and report on the outcome of the first 100 patients. METHODS: From October 2008 to June 2017, 424 pancreatic resections were performed, of which 203 were PD. The mPJ was introduced in November 2010 and used in 100 consecutive patients, by a single surgeon...
September 21, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28934385/hearing-loss-without-overt-metabolic-acidosis-in-atp6v1b1-deficient-mrl-mice-a-new-genetic-model-for-non-syndromic-deafness-with-enlarged-vestibular-aqueducts
#3
Cong Tian, Leona H Gagnon, Chantal Longo-Guess, Ron Korstanje, Susan M Sheehan, Kevin K Ohlemiller, Angela D Schrader, Jaclynn M Lett, Kenneth R Johnson
Mutations of the human ATP6V1B1 gene cause distal renal tubular acidosis (dRTA; OMIM #267300) often associated with sensorineural hearing impairment; however, mice with a knockout mutation of Atp6v1b1 were reported to exhibit a compensated acidosis and normal hearing. We discovered a new spontaneous mutation (vortex, symbol vtx) of Atp6v1b1 in an MRL/MpJ (MRL) colony of mice. In contrast to the reported phenotype of the knockout mouse, which was developed on a primarily C57BL/6 (B6) strain background, MRL-Atp6v1b1vtx/vtx mutant mice exhibit profound hearing impairment, which is associated with enlarged endolymphatic compartments of the inner ear...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28906016/cxcl10-is-upregulated-in-synovium-and-cartilage-following-articular-fracture
#4
Bridgette D Furman, Collin L Kent, Janet L Huebner, Virginia B Kraus, Amy L McNulty, Farshid Guilak, Steven A Olson
The objective of this study was to investigate the expression of the chemokine CXCL10 and its role in joint tissues following articular fracture. We hypothesized that CXCL10 is upregulated following articular fracture and contributes to cartilage degradation associated with post-traumatic arthritis (PTA). To evaluate CXCL10 expression following articular fracture, gene expression was quantified in synovial tissue from knee joints of C57BL/6 mice that develop PTA following articular fracture, and MRL/MpJ mice that are protected from PTA...
September 14, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28870174/local-cd34-positive-capillaries-decrease-in-mouse-models-of-kidney-disease-associating-with-the-severity-of-glomerular-and-tubulointerstitial-lesions
#5
Md Abdul Masum, Osamu Ichii, Yaser Hosny Ali Elewa, Teppei Nakamura, Yasuhiro Kon
BACKGROUND: The renal vasculature plays important roles in both homeostasis and pathology. In this study, we examined pathological changes in the renal microvascular in mouse models of kidney diseases. METHODS: Glomerular lesions (GLs) in autoimmune disease-prone male BXSB/MpJ-Yaa (Yaa) mice and tubulointerstitial lesions (TILs) in male C57BL/6 mice subjected to unilateral ureteral obstruction (UUO) for 7 days were studied. Collected kidneys were examined using histopathological techniques...
September 4, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28800777/bortezomib-treatment-induces-a-higher-mortality-rate-in-lupus-model-mice-with-a-higher-disease-activity
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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