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Patient—prosthesis mismatch

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https://www.readbyqxmd.com/read/28214977/braf-mutated-colorectal-cancer-what-is-the-optimal-strategy-for-treatment
#1
REVIEW
Romain Cohen, Pascale Cervera, Magali Svrcek, Anna Pellat, Chantal Dreyer, Aimery de Gramont, Thierry André
The BRAF activating mutation, harbored by approximately 10% of colorectal cancers (CRC), confers dramatic prognosis to advanced diseases. In early-stage setting, the identification of the BRAF mutation does not impact the therapeutic decision. Yet, the BRAF mutation could be considered as a stratification factor in adjuvant trials, because of its prognostic impact after relapse. Moreover, both BRAF mutation and mismatch repair (MMR) statuses should be determined in all CRC to help identify sporadic tumors versus Lynch syndrome-related tumors...
February 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28214209/expression-and-promoter-dna-methylation-of-mlh1-in-colorectal-cancer-and-lung-cancer
#2
Yunxia Ma, Yuan Chen, Iver Petersen
AIMS: Aberrant DNA methylation is a common molecular feature in human cancer. The aims of this study were to analyze the methylation status of MLH1, one of the DNA mismatch repair (MMR) genes, in human colorectal and lung cancer and to evaluate its clinical relevance. METHODS: The expression of MLH1 was analyzed in 8 colorectal cancer (CRC) and 8 lung cancer cell lines by real-time RT-PCR and western blotting. The MLH1 protein expression was evaluated by immunohistochemistry on tissue microarrays including 121 primary CRC and 90 lung cancer patient samples...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212937/the-impact-of-alemtuzumab-scheduling-on-graft-versus-host-disease-following-unrelated-donor-fludarabine-and-melphalan-allografts
#3
Kile Green, Kim Pearce, Rob S Sellar, Laura Jardine, Phillip Lr Nicolson, Sandeep Nagra, Venetia Bigley, Graham Jackson, Anne M Dickinson, Kirsty Thomson, Stephen Mackinnon, Charles Craddock, Karl S Peggs, Matthew Collin
Alemtuzumab conditioning is highly effective at reducing the incidence of acute and chronic graft versus host disease (GVHD) in reduced intensity fludarabine and melphalan transplantation with ciclosporin monotherapy. Less frequent and lower dose scheduling may be used with sibling donors but an optimal regimen for matched unrelated donors has not been defined. In this retrospective observational study of 313 patients, the incidence and severity of GVHD was compared in patients receiving three different dose schedules: the standard 100mg regimen (20mg on day -7 to -3), 60mg (30mg day -4 and -2) or 50mg (10mg on day -7 to -3)...
February 14, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28211192/racial-differences-in-incident-de-novo-donor-specific-anti-hla-antibody-among-primary-renal-allograft-recipients
#4
Matthew J Everly, Kimberly P Briley, Carl E Haisch, Georg Dieplinger, Paul Bolin, Scott A Kendrick, Claire Morgan, Angela Q Maldonado, Lorita M Rebellato
Controversy exists as to whether African American (AA) transplant recipients are at risk for developing de novo donor-specific anti-human leukocyte antigen (HLA) antibody (dnDSA). We studied 341 HLA-mismatched, primary renal allograft recipients who were consecutively transplanted between 3/1999 and 12/2010. Sera were collected sequentially pre- and post-transplant and tested for anti-HLA immunoglobulin G (IgG) via single antigen bead assay. Of the 341 transplant patients (225 AA and 116 non-AA), 107 developed dnDSA at a median of 9...
February 17, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28210855/lymph-node-retrieval-in-colorectal-cancer-determining-factors-and-prognostic-significance
#5
Johannes Betge, Lars Harbaum, Marion J Pollheimer, Richard A Lindtner, Peter Kornprat, Matthias P Ebert, Cord Langner
PURPOSE: The study aimed to analyze clinicopathological factors that determine the extent of lymph node retrieval and to evaluate its prognostic impact in patients with colorectal cancer (CRC). METHODS: The number of retrieved lymph nodes was analyzed in 381 CRC specimens. Lymph node count was related to different clinicopathological variables by binary logistic regression. Progression-free survival (PFS) and cancer-specific survival (CSS) were determined using the Kaplan-Meier method and Cox regression models...
February 16, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28208149/distal-middle-cerebral-artery-branch-recanalization-does-not-affect-final-lesion-volume-in-ischemic-stroke
#6
Verena van Ginneken, Daniel Gierhake, Heinrich J Audebert, Jochen B Fiebach
BACKGROUND: Early recanalization in ischemic stroke is associated with favorable outcome. However, limited data are available on the effect of recanalization on infarct growth and functional outcome in stroke with distal middle cerebral artery (MCA) pathology. This study was aimed at determining the effect of recanalization in acute stroke patients with perfusion-diffusion mismatch and occlusion or high-grade stenosis of a distal MCA branch. METHODS: We prospectively examined 34 consecutive stroke patients with perfusion-diffusion mismatch and M3 or M4 pathology within 24 h of symptom onset...
February 17, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28207632/are-we-ready-for-epitope-based-hla-matching-in-clinical-organ-transplantation
#7
Rene J Duquesnoy
This overview describes recent developments demonstrating the significance of epitopes in HLA antibody responses and matching for organ transplantation. HLA epitopes are defined by molecular modeling and amino acid comparisons between HLA alleles and the HLAMatchmaker algorithm considers eplets as essential components. Each allele represents a distinct string of eplets and matching is done by aligning donor and recipient strings. Evidence is summarized how mismatched eplet loads affect antibody responses and transplant outcomes...
February 15, 2017: Transplantation
https://www.readbyqxmd.com/read/28207602/spreading-depolarization-monitoring-in-neurocritical-care-of-acute-brain-injury
#8
Jed A Hartings
PURPOSE OF REVIEW: Spreading depolarizations are unique in being discrete pathologic entities that are well characterized experimentally and also occur commonly in patients with substantial acute brain injury. Here, we review essential concepts in depolarization monitoring, highlighting its clinical significance, interpretation, and future potential. RECENT FINDINGS: Cortical lesion development in diverse animal models is mediated by tissue waves of mass spreading depolarization that cause the toxic loss of ion homeostasis and limit energy substrate supply through associated vasoconstriction...
February 14, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28206975/long-term-clinical-outcomes-of-hematopoietic-cell-transplantation-for-intermediate-to-poor-risk-acute-myeloid-leukemia-during-first-remission-according-to-available-donor-types
#9
Jae-Ho Yoon, Hee-Je Kim, Sung-Soo Park, Young-Woo Jeon, Sung-Eun Lee, Byung-Sik Cho, Ki-Seong Eom, Yoo-Jin Kim, Seok Lee, Chang-Ki Min, Seok-Goo Cho, Dong-Wook Kim, Jong-Wook Lee, Woo-Sung Min
Standard therapy for acute myeloid leukemia (AML) consists of hematopoietic cell transplantation (HCT) including autologous-HCT (AUTO) and allogeneic-HCT from a matched-sibling donor (MSD) or well-matched unrelated donor (WM-URD). When a conventional donor is not available, HCT from a partially-matched (PM)-URD or familial-mismatched donor (FMMD) is typically considered. We analyzed 561 patients with intermediate to poor-risk molecular cytogenetics who underwent transplant from 2002 to 2013 in their first remission...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28206973/clinical-implications-of-hla-locus-mismatching-in-unrelated-donor-hematopoietic-cell-transplantation-a-meta-analysis
#10
REVIEW
Ruxiu Tie, Tiansong Zhang, Bo Yang, Huarui Fu, Biqing Han, Jian Yu, Yamin Tan, He Huang
It remains controversial that the impacts of individual HLA locus mismatches on clinical outcomes of patients receiving unrelated-donor hematopoietic cell transplantation (HCT), as compared to HLA allele matched controls. We conducted a meta-analysis to address these issues. Four databases (PubMed, Embase, Web of Science and the Cochrane Library) were searched to select eligible studies. All donor-recipient pairs were high-resolution typing for HLA-A, -B, -C, -DRB1, DQB1 and DPB1 loci. Multivariate-adjusted hazard ratios (HRs) were extracted and pooled using a random-effects model...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28206961/lynch-syndrome-related-small-intestinal-adenocarcinomas
#11
Sun-Young Jun, Eui-Jin Lee, Mi-Ju Kim, Sung Min Chun, Young Kyung Bae, Soon Uk Hong, Jene Choi, Joon Mee Kim, Kee-Taek Jang, Jung Yeon Kim, Gwang Il Kim, Soo Jin Jung, Ghilsuk Yoon, Seung-Mo Hong
Lynch syndrome is an autosomal-dominant disorder caused by defective DNA mismatch repair (MMR) genes and is associated with increased risk of malignancies in multiple organs. Small-intestinal adenocarcinomas are common initial manifestations of Lynch syndrome. To define the incidence and characteristics of Lynch syndrome-related small-intestinal adenocarcinomas, meticulous familial and clinical histories were obtained from 195 patients with small-intestinal adenocarcinoma, and MMR protein immunohistochemistry, microsatellite instability, MLH1 methylation, and germline mutational analyses were performed...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28205183/large-primary-pleural-synovial-sarcoma-with-severe-dyspnea-a-case-report
#12
Minoru Yamaki, Shuji Yonehara, Toshio Noriyuki
BACKGROUND: Synovial sarcoma is a malignant neoplasm of soft tissues. It occurs mainly in the extremities and is closely related to tendons, tendon sheaths, and bursal structures. Primary synovial sarcoma of the pleura and lungs is extremely rare. CASE PRESENTATION: We present the case of a 62-year-old man with a large synovial sarcoma of the left pleura. He presented with general fatigue and severe dyspnea. Chest computed tomography (CT) revealed a 20-cm tumor in the left thoracic cavity...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28205066/a-single-center-analysis-of-chronic-graft-versus-host-disease-free-relapse-free-survival-after-alternative-donor-stem-cell-transplantation-in-children-with-hematological-malignancies
#13
Jiro Inagaki, Reiji Fukano, Maiko Noguchi, Jun Okamura
We assessed the clinical outcomes of allogeneic hematopoietic stem cell transplantation (SCT) from alternative donors for pediatric patients with hematological malignancies, defining graft-versus-host disease (GVHD)-free, relapse-free survival (GRFS) as a composite endpoint. We also defined chronic GVHD-free, relapse-free survival (cGRFS) as survival without severe chronic GVHD, relapse, or death. The probabilities of 2-year disease-free survival from a human leukocyte antigen (HLA) matched unrelated donor (n = 57), related donor with HLA-1 antigen mismatch in the graft-versus-host direction (1Ag-GvH-MMRD, n = 28), and unrelated umbilical cord blood (n = 35) were 52...
February 15, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28202085/should-capnography-be-used-as-a-guide-for-choosing-a-ventilation-strategy-in-circulatory-shock-caused-by-severe-hypothermia-observational-case-series-study
#14
Tomasz Darocha, Sylweriusz Kosiński, Anna Jarosz, Paweł Podsiadło, Mirosław Ziętkiewicz, Tomasz Sanak, Robert Gałązkowski, Jacek Piątek, Janusz Konstanty-Kalandyk, Rafał Drwiła
BACKGROUND: Severe accidental hypothermia can cause circulatory disturbances ranging from cardiac arrhythmias through circulatory shock to cardiac arrest. Severity of shock, pulmonary hypoperfusion and ventilation-perfusion mismatch are reflected by a discrepancy between measurements of CO2 levels in end-tidal air (EtCO2) and partial CO2 pressure in arterial blood (PaCO2). This disparity can pose a problem in the choice of an optimal ventilation strategy for accidental hypothermia victims, particularly in the prehospital period...
February 15, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28198173/delphi-based-study-and-analysis-of-key-risk-factors-for-invasive-fungal-infection-in-haematological-patients
#15
L Vázquez, M Salavert, J Gayoso, M Lizasoaín, I Ruiz Camps, N Di Benedetto
OBJECTIVE: Mortality caused by invasive fungal infections due to filamentous fungi (IFI-FF) is high. Predisposing factors to IFI-FF are multiple and should be stratified. The objective of this study was to identify key risk factors for IFI-FF in onco-haematological patients in different clinical settings. METHODS: Prospective national Delphi study. Risk factors for IFI-FF in patients with onco-haematological diseases were identified by a systematic review of the literature...
February 14, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28195393/use-of-multigene-panel-identifies-pathogenic-variants-in-several-crc-predisposing-genes-in-patients-previously-tested-for-lynch-syndrome
#16
Maren F Hansen, Jostein Johansen, Anna E Sylvander, Inga Bjørnevoll, Bente A Talseth-Palmer, Liss Anne S Lavik, Alexandre Xavier, Lars F Engebretsen, Rodney J Scott, Finn Drabløs, Wenche Sjursen
Many families with a high burden of colorectal cancer fulfil the clinical criteria for Lynch Syndrome. However, in about half of these families, no germline mutation in the mismatch repair genes known to be associated with this disease can be identified. The aim of this study was to find the genetic cause for the increased colorectal cancer risk in these unsolved cases. Therefore, we designed a gene panel targeting 112 previously known or candidate colorectal cancer susceptibility genes to screen 274 patient samples for mutations...
February 14, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28195261/immunohistochemical-evaluation-of-mismatch-repair-proteins-in-colorectal-carcinoma-the-aifeg-gipad-proposal
#17
A Remo, M Fassan, G Lanza
Microsatellite instability (MSI) is a hypermutable phenotype that usually arises from either a germline mutation in components of the mismatch repair (MMR) machinery (i.e. hMLH1, MSH2, MSH6 and PMS2) in patients with Lynch syndrome (LS) or somatic hypermethylation of the hMLH1 promoter in sporadic carcinomas. In all colorectal cancers (CRC) is possible to identify the MMR deficiency through protein expression by immunoistochemistry (IHC). Recently, the predictive role of MMR deficiency in reduced chemotherapy benefit and the introduction of universal screening for Lynch syndrome suggest to include MMR testing into routine clinical practice...
September 2016: Pathologica
https://www.readbyqxmd.com/read/28194499/bone-femoral-component-interface-gap-after-sagittal-mechanical-axis-alignment-is-filled-with-new-bone-after-cementless-total-knee-arthroplasty
#18
Shinichi Kuriyama, Katsufumi Hyakuna, Satoshi Inoue, Yasutsugu Kawai, Yasuyuki Tamaki, Hiromu Ito, Shuichi Matsuda
PURPOSE: This study retrospectively evaluated the fate of mismatch between an uncemented femoral component and each femoral cut surface (i.e., wedge-shaped gap) relative to sagittal mechanical alignment in total knee arthroplasty (TKA). METHODS: Primary TKA was performed on 99 consecutive knees. The femoral components were aligned to the sagittal mechanical axis with CT-based navigation. All patients were assessed with postoperative true lateral radiographs. Bone-side surfaces of the uncemented femoral component were divided into five zones: anterior flange, anterior chamfer, posterior chamfer, posterior part, and distal part, which were defined as zones 1 to 5, respectively...
February 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28189096/abnormal-agency-experiences-in-schizophrenia-patients-examining-the-role-of-psychotic-symptoms-and-familial-risk
#19
Merel Prikken, Anouk van der Weiden, Robert A Renes, Martijn G J C Koevoets, Henriette D Heering, René S Kahn, Henk Aarts, Neeltje E M van Haren
Experiencing self-agency over one's own action outcomes is essential for social functioning. Recent research revealed that patients with schizophrenia do not use implicitly available information about their action-outcomes (i.e., prime-based agency inference) to arrive at self-agency experiences. Here, we examined whether this is related to symptoms and/or familial risk to develop the disease. Fifty-four patients, 54 controls, and 19 unaffected (and unrelated) siblings performed an agency inference task, in which experienced agency was measured over action-outcomes that matched or mismatched outcome-primes that were presented before action performance...
November 1, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28188180/a-population-genomics-approach-to-assessing-the-genetic-basis-of-within-host-microevolution-underlying-recurrent-cryptococcal-meningitis-infection
#20
Johanna Rhodes, Mathew A Beale, Mathieu Vanhove, Joseph N Jarvis, Shichina Kannambath, John A Simpson, Anthea Ryan, Graeme Meintjes, Thomas S Harrison, Matthew C Fisher, Tihana Bicanic
Recurrence of meningitis due to Cryptococcus neoformans after treatment causes substantial mortality in HIV/AIDS patients across sub-Saharan Africa. In order to determine whether recurrence occurred due to relapse of the original infecting isolate or reinfection with a different isolate weeks or months after initial treatment, we used whole-genome sequencing to assess the genetic basis of infection in 17 HIV-infected individuals with recurrent cryptococcal meningitis. Comparisons revealed a clonal relationship for 15 pairs of isolates recovered before and after recurrence showing relapse of the original infection...
February 10, 2017: G3: Genes—Genomes—Genetics
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